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                                                                   EXHIBIT 10.9

                         REGISTRATION RIGHTS AGREEMENT
                         -----------------------------

          THIS REGISTRATION RIGHTS AGREEMENT is made as of July 28, 1998 by and
among ACCESS RADIOLOGY CORPORATION, a Delaware corporation (the "Company"), and
such holders of the Company's equity securities as shall execute a counterpart
signature page to this Agreement from time to time.

          The parties agree as follows:

1.   GENERAL

     1.1  Definitions. As used in this Agreement, the following terms will have
the following respective meanings:

          (a)  "Agreement" has the meaning set forth in the first paragraph
hereof.

          (b)  "Company" has the meaning set forth in the first paragraph of
this Agreement.

          (c)  "Equity Security" means (1) any Common Stock, Preferred Stock or
other equity security of the Company, (2) any security convertible, with or
without consideration, into any Common Stock, Preferred Stock or other equity
security of the Company (including any option to purchase such a convertible
security), (3) any security carrying any warrant or right to subscribe to or
purchase any Common Stock, Preferred Stock or other equity security of the
Company, or (4) any such warrant or right; provided that "Equity Security" shall
not include (i) the Series J Preferred stock of the Company or any Common Stock
issued or issuable upon conversion thereof, or (ii) any security issued or
issuable after May 31, 1998 (other than upon conversion or exercise of an Equity
Security issued or issuable on such date) that is excluded from the definition
of Equity Security by action of the Company's Board of Directors (provided that
no Series K Security may be so excluded).

          (d)  "Exchange Act" means the Securities Exchange of 1934, as amended.

          (e)  "Holder" means any Investor owning of record Registrable
Securities or any assignee of record of such Registrable Securities in
accordance with Section 2.10 hereof.

          (f)  "Initial Offering" means the Company's first firm commitment
underwritten public offering of its Common Stock registered under the Securities
Act.

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          (g)  "Initiating Holders" means the Holders of at least 50% of the
Registrable Securities then outstanding.

          (h)  "Investor" means a holder of Equity Securities that is a party to
this Agreement.

          (i)  "Qualified Public Offering" means a public offering of equity
securities of the Company in which the offering price per share is at least
$3.00 and the aggregate offering price to the public is in excess of
$15,000,000.

          (j)  "Register," "registered" and "registration" refer to a
registration effected by preparing and filing a registration statement in
compliance with the Securities Act and the declaration or ordering of
effectiveness of such registration statement or documents.

          (k)  "Registrable Securities" means (1) Common Stock of the Company
issued from time to time to any Investor or issuable upon conversion or exercise
of any Equity Securities held by an Investor; and (2) any Common Stock of the
Company issued as (or issuable upon the conversion or exercise of any warrant,
right or other security that is issued as) a dividend or other distribution with
respect to, or in exchange for or in replacement of, such above-described
securities. Notwithstanding the foregoing, Registrable Securities will not
include (1) Common Stock issued or issuable upon exercise of stock options
granted by the Company as compensation, (2) any Common Stock issued or issuable
after May 31, 1998 (other than upon conversion or exercise of an Equity Security
issued or issuable on such date) that is excluded from the definition of
Registrable Securities by action of the Company's Board of Directors (provided
that no Series K Security may be so excluded), (3) any Common Stock issued or
issuable upon conversion of the Series J Preferred stock of the Company, or (4)
any securities sold by a Person to the public either pursuant to a registration
statement or Rule 144 or sold in a private transaction in which the transferor's
rights under Section 2 of this Agreement are not assigned.

          (l)  "Registrable Securities then outstanding" means the number of
shares determined by calculating the total number of shares of the Company's
Common Stock that are Registrable Securities and either (1) are then issued and
outstanding or (2) are issuable pursuant to then exercisable or convertible
securities.

          (m)  "Registration Expenses" means all expenses incurred by the
Company in complying with Sections 2.2, 2.3 and 2.4 including, without
limitation, all registration and filing fees, printing expenses, fees and
disbursements of counsel for the Company, reasonable fees and disbursements not
to exceed $15,000 of a single special counsel for the Holders, blue sky fees and

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expenses and the expense of any special audits incident to or required by any
such registration (but excluding the compensation of regular employees of the
Company, which will be paid in any event by the Company).

          (n)  "Securities Act" means the Securities Act of 1933, as amended.

          (o)  "Selling Expenses" means all underwriting discounts and selling
commissions applicable to the sale.

          (p)  "Series K Securities" means the Series K Preferred Stock of the
Company, the Common Stock issued or issuable upon conversion thereof, the Common
Stock Purchase Warrants issued under agreements to purchase the Series K
Preferred Stock, and the Common Stock issued or issuable upon exercise of such
warrants.

          (q)  "Form S-3" means such form under the Securities Act as in effect
on the date hereof or any successor registration form under the Securities Act
subsequently adopted by the SEC that permits inclusion or incorporation of
substantial information by reference to other documents filed by the Company
with the SEC.

          (r)  "SEC" means the Securities and Exchange Commission.

          (s)  "Violation" has the meaning set forth in Section 2.9(a) of this
Agreement.

2.   REGISTRATION; RESTRICTIONS ON TRANSFER.

     2.1  Restrictions On Transfer.

          (a)  No Investor will make any disposition of Equity Securities unless
and until:

               (1)  There is then in effect a registration statement under the
     Securities Act covering such proposed disposition and such disposition is
     made in accordance with such registration statement;

               (2)  (A) The transferee has agreed in writing to be bound by this
     Section 2.1, (B) such Investor has notified the Company of the proposed
     disposition and has furnished the Company with a detailed statement of
     circumstances surrounding the proposed disposition, and (C) if reasonably
     requested by the Company, such Investor has furnished the Company with an
     opinion of counsel, reasonably satisfactory

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     to the Company, that such disposition will not require registration of such
     shares under the Securities Act; or

               (3)  The disposition is a disposition of Common Stock made in
     compliance with Rule 144 under the Securities Act and the transferor has
     provided to the Company reasonably detailed confirmation of such
     compliance. Such confirmation will include an opinion of counsel if
     reasonably requested by the Company, except that the Company will not
     require opinions of counsel for transactions made pursuant to Rule 144(k)
     except in unusual circumstances.

               (4)  Notwithstanding the provisions of Sections 2.1(a)(1),
     2.1(a)(2), and 2.1(a)(3), no registration statement or opinion of counsel
     will be necessary for a transfer by an Investor that is (A) a partnership
     to its partners or former partners in accordance with the partnership
     interests, (B) a corporation to its shareholders in accordance with their
     interests in the corporation, (C) a limited liability company to its
     members or former members in accordance with their interests in the limited
     liability company, (D) to a Investor's family member or trust for the
     benefit of an individual Investor or a Investor's family member or members,
     or (E) made without consideration to an entity that is controlled by,
     controls, or is under common control with the transferring Investor,
     provided that the transferee will be subject to the terms of this Section
     2.1 to the same extent as if he, she or it were an original Investor
     hereunder.

          (b)  Each certificate representing Equity Securities subject to this
Agreement issued after May 31, 1998 will (unless otherwise permitted by the
provisions of this Agreement) be stamped or otherwise imprinted with a legend
substantially similar to the following (in addition to any legend required under
applicable state securities laws):

     THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
     REGISTERED UNDER THE SECURITIES ACT OF 1933. THESE SECURITIES HAVE
     BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO DISTRIBUTION OR
     RESALE, AND MAY NOT BE MORTGAGED, PLEDGED, HYPOTHECATED OR OTHERWISE
     TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT FOR SUCH
     SECURITIES UNDER THE SECURITIES ACT OF 1933 OR AN OPINION OF COUNSEL
     FOR THE CORPORATION THAT REGISTRATION IS NOT REQUIRED UNDER SUCH ACT.

          (c)  The Company will reissue promptly unlegended certificates at the
request of any holder thereof if the holder has obtained an opinion of counsel
(which counsel may be counsel to the Company) reasonably acceptable to the
Company to the effect that the securities represented by such certificate, may

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lawfully be so disposed of without registration, qualification or legend.

          (d)  Any legend endorsed on an instrument pursuant to applicable state
securities laws and the stop-transfer instructions with respect to such
securities will be removed upon receipt by the Company of an order of the
appropriate blue sky authority authorizing such removal.

     2.2  Demand Registration.

          (a)  If the Company receives a written request from the Initiating
Holders that the Company file a registration statement under the Securities Act
covering the sale of Registrable Securities that, if completed, would result in
a public offering of equity securities of the Company having an aggregate
offering price to the public in excess of $15,000,000, then the Company will,
within 30 days of the receipt thereof, give written notice of such request to
all other Holders and effect, as soon as practicable, the registration under the
Securities Act of all Registrable Securities that the Holders request to be
registered. Each Holder desiring to include in any such registration statement
all or any part of the Registrable Securities held by it will, within 15 days
after the above-described notice from the Company, so notify the Company in
writing.

          (b)  If the Initiating Holders intend to distribute the Registrable
Securities covered by their request by means of an underwriting, they will so
advise the Company as a part of their request made pursuant to this Section 2.2
and the Company will include such information in the written notice referred to
in Section 2.2(a). In such event, the right of any Holder to include its
Registrable Securities in such registration will be conditioned upon such
Holder's participation in such underwriting and the inclusion of such Holder's
Registrable Securities in the underwriting (unless otherwise mutually agreed by
a majority in interest of the Initiating Holders and such Holder) to the extent
provided herein. All Holders proposing to distribute their securities through
such underwriting will enter into an underwriting agreement in customary form
with the underwriter or underwriters selected for such underwriting by the
Company. Notwithstanding any other provision of this Section 2.2, if the
underwriter advises the Company that marketing factors require a limitation of
the number of securities to be underwritten (including Registrable Securities)
then the Company will so advise all Holders of Registrable Securities that would
otherwise be underwritten pursuant hereto, and the number of shares that may be
included in the underwriting will be allocated first, to the holders of Common
Stock issued or issuable upon conversion of Series J Preferred Stock who have
exercised Registration rights pursuant to Section 2.3 of the Investors Rights
Agreement dated as of September 30, 1997; and, second, to the Holders of
Registrable

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Securities that would otherwise be underwritten pursuant hereto on a pro rata
basis based on the number of Registrable Securities held by all such Holders
(including the Initiating Holders). Any Registrable Securities excluded or
withdrawn from such underwriting will be withdrawn from the registration.
Notwithstanding the foregoing, the Company may, if approved by its Board of
Directors, unilaterally amend this Section from time to time to provide
purchasers of Equity Securities issued after May 31, 1998 with allocation rights
prior to those of Holders; provided that such rights may not have priority over
the rights of Holders to register Series K Securities hereunder.

          (c)  The Company will not be required to effect a registration
pursuant to this Section 2.2:

               (1)  during the period starting with the date of filing of, and
     ending on the date 180 days following the effective date of the
     registration statement pertaining to the Initial Offering, provided that
     the Company is making reasonable and good faith efforts to cause such
     registration statement to become effective;

               (2)  if, within 30 days of receipt of a written request from the
     Initiating Holders pursuant to Section 2.2(a), the Company notifies the
     Holders of its intention to file a registration statement with respect to a
     public offering of its Common Stock (excluding a registration relating to
     an employee benefit plan or with respect to a corporate reorganization or
     other transaction under Rule 145 of the Securities Act) within 90 days,
     during the period beginning on the date of such notice from the Company and
     ending 90 days thereafter;

               (3)  after the Company has effected two registrations pursuant to
     this Section 2.2 and such registrations have been declared or ordered
     effective (provided that there shall not be counted for purposes of this
     clause (3) any registration in which there are included, as a result of the
     operation of Section 2.2(b), less than 75% of the securities for which
     Holders requested inclusion under Section 2.2(a)); or

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               (4)  if the Company furnishes to the Holders a certificate signed
     by the Board of Directors stating that in the good faith judgment of the
     Board of Directors of the Company, it would be seriously detrimental to the
     Company and its shareholders for such registration to be effected at such
     time, in which event the Company will have the right to defer such filing
     for a period of not more than 90 days after receipt of the request of the
     Initiating Holders; provided that such right to delay a request will be
     exercised by the Company no more than twice in any one-year period.

          (d)  Notwithstanding anything else contained in this Agreement, no
Holder shall be permitted to cause the registration of any Registrable
Securities at any time when holders of Series J Preferred Stock of the Company
would not be permitted to cause registration of Common Stock issued or issuable
upon conversion thereof pursuant to the Investors Rights Agreement dated as of
September 30, 1997 among such holders and the Company.

     2.3  Piggyback Registrations.

          (a)  The Company will notify all Holders of Registrable Securities in
writing at least 30 days prior to the filing of any registration statement under
the Securities Act for purposes of a public offering of securities of the
Company (including, but not limited to, registration statements relating to
secondary offerings of securities of the Company, but excluding registration
statements relating to employee benefit plans or with respect to corporate
reorganizations or other transactions under Rule 145 of the Securities Act) and
will afford each such Holder an opportunity to include in such registration
statement all or part of such Registrable Securities held by such Holder. Each
Holder desiring to include in any such registration statement all or any part of
the Registrable Securities held by it will, within 15 days after the above-
described notice from the Company, so notify the Company in writing. Such notice
will state the intended method of disposition of the Registrable Securities by
such Holder. If a Holder decides not to include all of its Registrable
Securities in any registration statement thereafter filed by the Company, such
Holder will nevertheless continue to have the right to include any Registrable
Securities in any subsequent such registration statement or registration
statements as may be filed by the Company with respect to offerings of its
securities, all upon the terms and subject to the conditions set forth herein.

          (b)  If the registration statement under which the Company gives
notice under this Section 2.3 is for an underwritten offering, the Company will
so advise the Holders of Registrable Securities as a part of such notice. In
such event, the right of any Holder to be included in a registration pursuant to
this Section 2.3 will be conditioned upon such Holder's participation

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in such underwriting and the inclusion of such Holder's Registrable Securities
in the underwriting to the extent provided herein. All Holders proposing to
distribute their Registrable Securities through such underwriting will enter
into an underwriting agreement in customary form with the underwriter or
underwriters selected for such underwriting by the Company. Notwithstanding any
such provision of this Agreement, if the underwriter determines in good faith
that marketing factors require a limitation of the numbers of shares to be
underwritten, the number of shares that may be included in the underwriting will
be allocated: first, to the Company; second, to the holders of Common Stock
issued or issuable upon conversion of Series J Preferred Stock of the Company
who have exercised registration rights pursuant to the Investors Rights
Agreement dated as of September 30, 1997; third, to the Holders on a pro rata
basis based on the total number of Registrable Securities proposed to be sold by
the Holders (assuming conversion of all Shares); and fourth, to any other
shareholder of the Company on a pro rata basis (assuming conversion of all
Preferred Stock). Notwithstanding the foregoing, the Company may, if approved by
its Board of Directors, unilaterally amend this Section from time to time to
provide purchasers of Equity Securities issued after May 31, 1998 with
allocation rights prior to those of Holders; provided that such rights may not
have priority over the rights of Holders to register Series K Securities
hereunder.

          (c)  The Company will have the right to terminate or withdraw any
registration initiated or withdraw any registration initiated by it under this
Section 2.3 prior to the effectiveness of such registration whether or not any
Holder has elected to include securities in such registration. The Registration
Expenses of such withdrawn registration will be borne by the Company in
accordance with Section 2.5.

     2.4  Form S-3 Registration.

          (a)  If the Company receives a written request from a Holder or
Holders that the Company file a registration statement on Form S-3 under the
Securities Act covering the registration of Registrable Securities having an
aggregate offering price to the public in excess of $500,000, then the Company
will, within 10 days of the receipt thereof, given written notice of such
request to all other Holders and effect, as soon as practicable, the
registration on Form S-3 under the Securities Act of all Registrable Securities
that the Holders request to be registered. Each Holder desiring to include in
any such registration statement all or any part of the Registrable Securities
held by it will, within 15 days after the above-described notice from the
Company, so notify the Company in writing.

          (b)  If the Initiating Holders intend to distribute the Registrable
Securities covered by their request by means of an

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underwriting, they will so advise the Company as part of their request made
pursuant to this Section 2.4 and the Company will include such information in
the written notice referred to in Section 2.4(a). In such event, the right of
any Holder to include its Registrable Securities in such registration will be
conditioned upon such Holder's participation in such underwriting and the
inclusion of such Holder's Registrable Securities in the underwriting (unless
otherwise mutually agreed by a majority interest of the Initiating Holders and
such Holder) to the extent provided herein. All Holders proposing to distribute
their securities through such underwriting will enter into an underwriting
agreement in customary form with the underwriter or underwriters selected for
such underwriting by a majority in interest of the Initiating Holders (which
underwriter or underwriters will be reasonably acceptable to the Company).
Notwithstanding any other provision of this Section 2.4, if the underwriter
advises the Company that marketing factors require a limitation of the number of
securities to be underwritten (including Registrable Securities) then the
Company will so advise all Holders of Registrable Securities that would
otherwise be underwritten pursuant hereto, and the number of shares that may be
included in the underwriting will be allocated first, to the holders of Common
Stock issued or issuable upon conversion of Series J Preferred Stock who have
exercised registration rights pursuant to Section 2.3 of the Investors Rights
Agreement dated as of September 30, 1997; and, second, to the Holders of
Registrable Securities on a pro rata basis based on the number of Registrable
Securities held by all such Holders (including the Initiating Holders). Any
Registrable Securities excluded or withdrawn from such underwriting will be
withdrawn from the registration. Notwithstanding the foregoing, the Company may,
if approved by its Board of Directors, unilaterally amend this Section from time
to time to provide purchasers of Equity Securities issued after May 31, 1998
with allocation rights prior to those of Holders; provided that such rights may
not have priority over the rights of Holders to register Series K Securities
hereunder.

          (c)  The Company will not be required to effect a registration
pursuant to this Section 2.4:

               (1)  if Form S-3 (or any similar form) is not available for such
     offering by the Holders;

               (2)  if the Company has effected two or more registrations
     pursuant to this Section 2.4 within the 12 months preceding receipt of the
     request described in Section 2.4(a); or

               (3)  if the Company furnishes to the Holders a certificate signed
     by the Board of Directors stating that in the good faith judgment of the
     Board of Directors of the Company, it would be seriously detrimental to the
     Company

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     and its shareholders for such registration to be effected at such time, in
     which event the Company will have the right to defer such filing for a
     period of not more than 90 days after receipt of the request of the
     Initiating Holders; provided that such right to delay a request will be
     exercised by the Company no more than twice in any one-year period.

          (d)  Notwithstanding anything else contained in this Agreement, no
Holder shall be permitted to cause the registration of any Registrable
Securities at any time when holders of Series J Preferred Stock of the Company
would not be permitted to cause registration of Common Stock issued or issuable
upon conversion thereof pursuant to the Investors Rights Agreement dated as of
September 30, 1997 among such holders and the Company.

          (e)  the Company covenants that it will, at any time when the Company
is otherwise eligible to register securities on Form S-3, use its best efforts
to timely file all reports required to be filed with the SEC under the
Securities Exchange Act of 1934.

     2.5  Expenses of Registration. Except as specifically provided in this
Agreement, all Registration Expenses incurred in connection with any
registration, qualification or compliance pursuant to Section 2.2, 2.3 or 2.4
will be borne by the Company. All Selling Expenses incurred in connection with
any registrations hereunder will be borne by the holders of the securities so
registered pro rata on the basis of the number of shares so registered. The
Company will not, however, be required to pay for expenses of any registration
proceeding begun pursuant to Section 2.2 or 2.4, the request of which has been
subsequently withdrawn by the Initiating Holders unless (a) the withdrawal is
based upon material adverse information concerning the Company of which the
Initiating Holders were not aware at the time of such request, or (b) in the
case of a registration pursuant to Section 2.2, the Holders of a majority of
Registrable Securities agree to forfeit their right to one requested
registration pursuant to Section 2.2, in which event such right will be
forfeited by all Holders. If the Holders are required to pay the Registration
Expenses, such expenses will be borne by the holders of securities (including
Registrable Securities) requesting such registration in proportion to the number
of shares for which registration was requested.

     2.6  Obligations Of The Company. Whenever required to effect the
registration of any Registrable Securities, the Company will, as soon as
practicable:

          (a)  Prepare and file with the SEC a registration statement with
respect to such Registrable Securities and use all

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reasonable efforts to cause such registration statement to become effective and
keep such registration statement effective for up to 120 days or, if earlier,
until the participating Holder or Holders have completed the distribution
related thereto.

          (b)  Prepare and file with the SEC such amendments and supplements to
such registration statements and the prospectus used in connection with such
registration statement as may be necessary to comply with the provisions of the
Securities Act with respect to the disposition of all securities covered such
registration statement.

          (c)  Furnish to the Holders such number of copies of a prospectus,
including a preliminary prospectus, in conformity with the requirements of the
Securities Act, and such other documents as they may reasonably request in order
to facilitate the disposition of Registrable Securities owned by them.

          (d)  Use all reasonable efforts to register and qualify the securities
covered by such registration statement under such other securities or Blue Sky
laws of such jurisdictions as will be reasonably requested by the Holders,
provided that the Company will not be required in connection therewith or as a
condition thereto to qualify to do business or to file a general consent to
service of process in any such state or jurisdictions.

          (e)  In the event of any underwritten public offering, enter into and
perform its obligations under an underwriting agreement, in usual and customary
form, with the managing underwriter or underwriter or underwriters of such
offering. Each Holder participating in such underwriting will also enter into
and perform its obligations under such an agreement.

          (f)  Notify each Holder of Registrable Securities covered by such
registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act of the happening of any event
as a result of which the prospectus included in such registration statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading, and promptly provide to each Holder a
corrected prospectus.

          (g)  Furnish, on the date that such Registrable Securities are
delivered to the underwriters for sale, if such securities are being sold
through underwriters, or, if such securities are not being sold through
underwriters, on the date that the registration statement with respect to such
securities becomes effective, (1) an opinion, dated as of such date, of the
counsel representing the Company for the purposes of such registration in form
and substance as is customarily given to underwriters in an underwritten public
offering and reasonably satisfactory to a

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majority in interest of the Holders requesting registration, addressed to the
underwriters, if any, and to the Holders requesting registration of Registrable
Securities, and (2) a letter, dated as of such date, from the independent
certified public accountants of the Company, in form and substance as is
customarily given by independent certified public accountants to underwriters in
an underwritten public offering and reasonably satisfactory to a majority in
interest of the Holders requesting registration, addressed to the underwriters,
if any, and if permitted by applicable accounting standards, to the Holders
requesting registration of Registrable Securities.

     2.7  Termination of Registration Rights. All registration rights granted
under this Section 2 will terminate and be of no further force and effect as to
any Holder if (a) the Company has completed its Initial Offering and is subject
to the provisions of the Exchange Act, and (b) all Registrable Securities held
by such Holder (together with its affiliates, partners and former partners) may
be sold under Rule 144 during any 90-day period.

     2.8  Delay Of Registration; Furnishing Information.

          (a)  No Holder will have any right to obtain or seek an injunction
restraining or otherwise delaying any registration hereunder as the result of
any controversy that might arise with respect to the interpretation or
implementation of this Section 2.

          (b)  It will be a condition precedent to the obligations of the
Company to take an action pursuant to Section 2.2, 2.3 or 2.4 that the selling
Holders will furnish to the Company such information regarding themselves, the
Registrable Securities held by them and the intended method of disposition of
such securities as will be requested by the Company and required to effect the
registration of such Holder's Registrable Securities.

     2.9  Indemnification. In the event any Registrable Securities are included
in a registration statement under Section 2.2, 2.3 or 2.4:

          (a)  To the extent permitted by law, the Company will indemnify and
hold harmless each Holder, the partners, shareholders, officers, stockholders,
directors and legal counsel of such Holder, any underwriter (as defined in the
Securities Act) for such Holder and each person, if any, who controls such
Holder or underwriter within the meaning of the Securities Act or the Exchange
Act against any losses, claims, damages or liabilities (joint or several) to
which any of such persons may become subject insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon any of the following statements, omissions or violations (indi-

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vidually a "Violation") by the Company; (1) any untrue statement or alleged
untrue statement of a material fact contained in such registration statement,
including any preliminary prospectus or final prospectus contained therein or
any amendments or supplements thereto; (2) the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein, not misleading; or (3) any violation or alleged
violation by the Company of the Securities Act, the Exchange Act, any state
securities law or any rule or regulation promulgated under the Securities Act,
the Exchange Act or any state securities law in connection with the offering
covered by such registration statement; and the Company will reimburse each such
Holder, partner, shareholder, officer, director, underwriter or controlling
person for any legal or other expenses reasonably incurred by them in connection
with investigating or defending any such loss, claim, damage, liability or
action; provided, however, that the indemnity agreement contained in this
Section 2.9(a) will not apply to amounts paid in settlement of any such loss,
claim, damage, liability or action if such settlement is effected without the
consent of the Company, which consent will not be unreasonably withheld, nor
will the Company be liable in any such case for any such loss, claim, damage,
liability or action to the extent that (i) it arises out of or is based upon a
Violation that occurs in reliance upon and in conformity with written
information furnished expressly for use in connection with such registration by
such Holder, partner, officer, director, underwriter or controlling person of
such Holder, or (ii) in the case of a sale directly by a Holder of Registrable
Securities (including a sale of such Registrable Securities through any
underwriter retained by such Holder to engage in a distribution solely on behalf
of such Holder), such untrue statement or alleged untrue statement or omission
or alleged omission was contained in a preliminary prospectus and corrected in a
final or amended prospectus (a copy of which was delivered to such Holder by the
Company at or prior to confirmation of such sale), and such Holder failed to
deliver a copy of the final or amended prospectus at or prior to the
confirmation of such sale of the Registrable Securities to the person asserting
any such loss, claim, damage or liability in any case where such delivery is
required by the Securities Act.

          (b)  To the extent permitted by law, each Holder will, if Registrable
Securities held by such Holder are included in the securities as to which such
registration is being effected, indemnify and hold harmless the Company, each of
its directors, stockholders, officers and legal counsel, any underwriter (as
defined in the Securities Act) for the Company and each person, if any, who
controls the Company or underwriter within the meaning of the Securities Act,
and any other Holder selling securities under such registration statement, any
of such Holder's partners, shareholders, directors, officers or legal counsel,
any underwriter (as defined in the Securities Act) for such

                                      -13-
<PAGE>

Holder or any person who controls such Holder or underwriter, against any
losses, claims, damages or liabilities (joint or several) to which any of such
persons may become subject under the Securities Act, the Exchange Act or other
federal or state law, insofar as such losses, claims, damages or liabilities (or
actions in respect thereto) arise out of or are based upon any Violation by the
Company, in each case to the extent (and only to the extent) that such Violation
occurs in reliance upon and in conformity with written information furnished by
such Holder under an instrument duly executed by such Holder and stated to be
specifically for use in connection with such registration; and each such Holder
will reimburse any legal or other expenses reasonably incurred by any such
person in connection with investigating or defending any such loss, claim,
damage, liability or action; provided, however, that the indemnity agreement
contained in this Section 2.9(b) will not apply to amounts paid in settlement of
any such loss, claim, damage, liability or action if such settlement is effected
without the consent of the Holder, which consent will not be unreasonably
withheld; provided, further, that in no event will any indemnity under this
Section 2.9(b) exceed the proceeds from the offering received by the
indemnifying Holder.

          (c)  Promptly after receipt by an indemnified party under this Section
2.9 of notice of the commencement of any action (including any governmental
action), such indemnified party will, if a claim in respect thereof is to be
made against any indemnifying party under this Section 2.9, deliver to the
indemnifying party a written notice of the commencement thereof and the
indemnifying party will have the right to participate in and, to the extent the
indemnifying party so desires, jointly with any other indemnifying party
similarly noticed, to assume the defense thereof with counsel mutually
satisfactory to the parties; provided, however, that an indemnified party will
have the right to retain its own counsel, with the fees and expenses to be paid
by the indemnifying party, if representation of such indemnified party by the
counsel retained by the indemnifying party would be inappropriate due to actual
or potential differing interests between such indemnified party and any other
party represented by such counsel in such proceeding. The failure to deliver
written notice to the indemnifying party within a reasonable time of the
commencement of any such action, if materially prejudicial to its ability to
defend such action, will relieve such indemnifying party of any liability to the
indemnified party under this Section 2.9, but the omission so to deliver written
notice to the indemnifying party will not relieve it of any liability that it
may have to any indemnified party otherwise than under this Section 2.9.

          (d)  If the indemnification provided for in this Section 2.9 is held
by a court of competent jurisdiction to be

                                      -14-
<PAGE>

unavailable to an indemnified party with respect to any losses, claims, damage
or liabilities referred to herein, the indemnifying party, in lieu of
indemnifying such indemnified party thereunder, will to the extent permitted by
applicable law contribute to the amount paid or payable by such indemnified
party as a result of such loss, claim, damage or liability in such proportion as
is appropriate to reflect the relative fault of the indemnifying party on the
one hand and of the indemnified party on the other in connection with the
Violation or Violations that resulted in such loss, claim, damage or liability,
as well as any other relevant equitable considerations. The relative fault of
the indemnifying party and the indemnifying party will be determined by a court
of law by reference to, among other things, whether the untrue or alleged untrue
statement of a material fact or the omission to state a material fact relates to
information supplied by the indemnifying party or by the indemnified party and
the parties' relative intent, knowledge, access to information and opportunity
to correct or prevent such statement or omission; provided, that in no event
will any contribution by a Holder hereunder exceeds the proceeds from the
offering received by such Holder.

          (e)  The obligations of the Company and Holders under this Section 2.9
will survive completion of any offering of Registrable Securities in a
registration statement. No indemnifying party, in the defense of any such claim
or litigation with respect to which indemnification has been sought hereunder,
will, except with the consent of each indemnified party seeking indemnification
hereunder, consent to entry of any judgment or enter into any settlement that
does not include as an unconditional term thereof the giving by the claimant or
plaintiff to such indemnified party of a release from all liability in respect
to such claim or litigation.

     2.10 Assignment Of Registration Rights. The rights to cause the Company to
register Registrable Securities pursuant to this Section 2 may only be assigned
by a Holder to a transferee or assignee of Registrable Securities that (a) is a
subsidiary, parent, general partner, limited partner or retired partner of a
Holder, (b) is a Holder's family member or trust for the benefit of an
individual Holder or a Holder's family member or members, (c) is controlled by,
controls, or is under common control with the transferring Holder and acquires
Registrable Securities for no consideration, or (d) acquires at least 25,000
shares of Registrable Securities (as adjusted for stock splits and
combinations); provided, however, that the transferor will, within 10 days after
such transfer, furnish to the Company written notice of the name and address of
such transferee or assignee and the securities with respect to which such
registration rights are being assigned and such transferee with agree to be
subject to all restrictions set forth in this Agreement.

                                      -15-
<PAGE>

     2.11 "Market Stand-Off" Agreements. If requested by the Company or the
representative of the underwriters of Common Stock (or other securities) of the
Company, each Investor will not sell or otherwise transfer or dispose of any
Common Stock (or other securities) of the Company held by such Investors (other
than those included in the registration) for a period specified by the
representative of the underwriters not to exceed 180 days following the
effective date of the registration statement of the Company filed under the
Securities Act; provided that each officer and director of the Company that
holds more than 5000 shares of Common Stock (on an as-converted basis) shall
have entered into a similar agreement and provided, further, that the
obligations described in this Section 2.13 will not apply to a registration
relating solely to employee benefit plans or a registration relating solely to a
SEC Rule 145 transaction. The Company may impose stop-transfer instructions with
respect to the shares of Common Stock (or other securities) subject to the
foregoing restriction until the end of said period. The Company will use all
commercially reasonable efforts to require each other person who has acquired or
in the future acquires Common Stock or Preferred Stock from the Company to be
subject to the same or a substantially equivalent market stand-off agreement.

3.   MISCELLANEOUS

     3.1  Governing Law. This Agreement will be governed by and construed under
the laws of the State of Delaware.

     3.2  Survival. The representations, warranties, covenants and agreements
made herein will survive any investigation made by any Holder and the closing of
the transactions contemplated hereby. All statements as to factual matters
contained in any certificate or other instrument delivered by or on behalf of
the Company pursuant hereto in connection with the transactions contemplated
hereby will be deemed to be representations and warranties by the Company
hereunder solely as of the date of such certificate or instrument.

     3.3  Successors and Assigns. Except as otherwise expressly provided herein,
the provisions hereof will inure to the benefit of, and be binding upon, the
successors, assigns, heirs, executors, and administrators of the parties hereto
and will inure to the benefit of and be enforceable by each person who is a
holder of Registrable Securities from time to time; provided, however, that
prior to the receipt by the Company of adequate written notice of the transfer
of any Registrable Securities specifying the full name and address of the
transferee, the Company may deem

                                      -16-
<PAGE>

and treat the person listed as the holder of such shares in its records as the
absolute owner and holder of such shares for all purposes.

     3.4  Severability. In case any provision of the Agreement is invalid,
illegal or unenforceable, the validity, legality and enforceability of the
remaining provisions will not in any way be affected or impaired thereby.

     3.5  Amendment and Waiver.

          (a)  Except as otherwise expressly provided, this Agreement may be
amended or modified only upon the written consent of the Company and the holders
of at least a majority of the Registrable Securities.

          (b)  Except as otherwise expressly provided, (1) the obligations of
the Company and the rights of the Holders under this Agreement may be waived by
any Holder only in writing and for all Holders only with the written consent of
the holders of at least a majority of the Registrable Securities, and (2) the
obligations of the Holders and the rights of the Company under this Agreement
may be waived only with the written consent of the Company.

          (c)  Any amendment or waiver effected with the written consent of
holders of a majority of the Registrable Securities shall be binding upon all
holders of Registrable Securities.

     3.6  Delays or Omissions. No delay or omission to exercise any right, power
or remedy accruing to any party hereto upon any breach, default or noncompliance
of any other party under this Agreement will impair any such right, power or
remedy, nor will it be construed to be a waiver of any such breach, default or
noncompliance, or any acquiescence therein, or of any similar breach, default or
noncompliance thereafter occurring. Any waiver, permit, consent, or approval of
any kind or character on the part of any party hereto of any breach, default or
noncompliance under the Agreement or any waiver on such Holder's part of any
provisions or conditions of this Agreement must be in writing and will be
effective only to the extent specifically set forth in such writing. All
remedies, either under this Agreement, by law or otherwise afforded to the
parties hereto, will be cumulative and not alternative.

     3.7  Notices. All notices required or permitted hereunder will be in
writing and will be deemed effectively given: (1) upon personal delivery to the
party to be notified, (2) when sent by confirmed telex or facsimile if sent
during normal business hours of the recipient; if not, then on the next business
day, (3) five days after having been sent by registered or certified

                                      -17-
<PAGE>

mail, return receipt requested, postage prepaid, or (4) one day after deposit
with a nationally recognized overnight courier, specifying next day deliver,
with written verification of receipt. All communications will be sent to the
Company at its principal office and to any Investor at such Investor's address
appearing in the records of the Company.

     3.8  Attorneys' Fees. In the event that any dispute among the parties to
this Agreement should result in litigation, the prevailing party in such dispute
will be entitled to recover form the losing party all fees, costs and expenses
of enforcing any right of such prevailing party under or with respect to this
Agreement including, without limitation, reasonable fees and expenses of
attorneys and accountants which will include, without limitation, all fees,
costs and expenses of appeals.

     3.9  Titles and Subtitles. The titles of the sections and subsections of
Agreement are for convenience of reference only and are not to be considered in
construing this Agreement.

     3.10 Counterparts. This Agreement may be executed in any number of
counterparts, each of which will be an original, but all of which together will
constitute one instrument.

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Bessemer Venture Investors L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: VBW Employee Bedrock Fund, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Credit Suisse First Boston Bedrock Fund, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Bedrock Capital Partners I, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Pacific Venture Group, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: PVG Associates, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Delphi BioInvestments III, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Delphi Ventures III, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Bessec Ventures IV, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Bessemer Venture Partners IV, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: William T. Burgin

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Neill H. Brownstein

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Robert H. Buescher

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: G. Felda Hardymon

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Christopher Gabrielli

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: David J. Cowan

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Bruce K. Graham

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Gautam A. Prakash

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Robi L. Soni

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Joanna A. Strober

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Craighill Corporation

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Richard R. Davis

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Conaly Partners

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Lindsay 1994 Family Partnership, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: John G. McDonald

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor:                Howard S. Markowitz

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor:                Edward Park

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor: Robert J.S. Roriston

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor:                Steven L. Williamson

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor:                Woods 1994 Family Partnership, L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor:                BVP IV Special Situations L.P.

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:

<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

          Name of Investor:                Child Health Investment Corporation

                                             ______________________________
                                                         Signature
                                             Name:
                                             Title (if any):

                                           ACCESS RADIOLOGY CORPORATION

                                           By_____________________________
                                             Name:
                                             Title:<PAGE>

                                                                   EXHIBIT 10.11

                               HARTWELL GROUP LLC
                           COMMERCIAL LEASE ADDENDUM

A.        LESSEE OBLIGATIONS

1.        LESSEE shall not change the color or appearance of the outside of the
Leased Premises except upon the prior written consent of the LESSOR. However,
LESSEE may install its own emergency power generator to the exterior rear of the
building.

2.        LESSEE shall not post signs on or about the Premises without LESSOR's
prior approval, however LESSEE shall be entitled to reasonable signage to be
erected at LESSEE's own cost and expense, and in compliance with any relevant
municipal regulations.

3.        The parking areas shall not be used for storage of unused, damaged or
unregistered vehicles, nor shall the LESSEE store merchandise or other materials
in the parking areas.

4.        LESSEE shall not otherwise store vehicles, containers, or refuse
outside the Leased Premises, except for routine parking of vehicles and delivery
or pickup of products or materials.

5.        LESSEE shall be responsible to dispose of LESSEE trash and refuse.

6.        The LESSEE may maintain insurance required by this Lease under a
blanket policy of insurance which insures the LESSEE and any affiliates of the
LESSEE.

7.        No animals, reptiles or pets of any kind shall be kept in or about the
building, except for research purposes in accordance with applicable laws and
regulations.

B.        LESSOR OBLIGATIONS

1.        LESSOR shall, at its own cost and expense, maintain in good condition
and repair all structural components of the building containing the Leased
Premises, including the foundation, floor, loadbearing walls, exterior walls,
HVAC, plumbing and electrical service, roof, common area, if any, of the
Building, landscaping, parking areas and access ways.

2.        LESSOR shall remove snow and ice from the access roadway, the parking
areas, and the walkways, which serve the building, provide exterior lighting,
and LESSOR will remove snow or ice from the roof of the building if, as and when
the conditions cause roof leakage or threaten ice falls over access ways.

3.        LESSOR shall maintain with insurance companies, licensed in
Massachusetts, all risk fire insurance policies with extended coverage insuring
the property containing the Leased Premises against loss or damage caused by
fire or casualty in an amount equal to the full replacement cost of the
Building.

C.        SUBLEASING PROVISION

          The following provisions supplements the provisions of Section 13,
"Assignment-Subleasing" above.

(i)       The LESSOR shall be deemed to approve any assignment or sublease to a
parent, subsidiary or affiliate of the LESSEE upon written assurance by LESSEE
that the subsequent use will be in conformance with and subject to section 8,
above, "USE OF LEASED PREMISES".

(ii)      Provided that LESSEE pays all rent and other charges under this Lease,
LESSEE shall have a right to sub lease or assign with approval of the LESSOR,
and shall be entitled to all rents received up to the value of rent payable
under this Lease, and the parties will share equally in any rental income
realized in such an assignment or sublease which is in
<PAGE>

excess of the rent under this lease. The LESSEE shall bear all costs or expenses
of such sub leasing or assignment.

(iii)     In the event the LESSEE seeks approval for sub lease or assignment for
the entire premises, the LESSOR shall have the right to refuse approval for the
purposes of recovering possession of the Leased Premises, in which case, if the
LESSEE elects to vacate, the Lease term shall be deemed to expire at a mutually
agreed date.

D.        MARKET RATE RENT FOR EXTENSION OPTIONS

Upon receipt of written notice from the LESSEE of intent to extend, under
Section 25(b) of the Lease, LESSOR shall respond within thirty days with a
quotation for market rate rent. For this purpose "market rate" shall mean the
rate for Class B office space in comparable buildings in the general area, and
not for space with the specialized improvements installed by the LESSEE (the
parties agreeing that LESSEE shall not be charged rent for or with respect to
any laboratory, biotechnological, specialized or trade improvements which LESSEE
make to the Leased Premises at LESSEE's own expense). Fair market rate shall
reflect the provisions of this Lease for escalation of real estate taxes,
operating costs and for utility charges.  The LESSEE shall respond within thirty
(30) days agreeing to the quotation, rejecting the extension or requesting third
party determination of market rate. In the later event each party shall then
appoint a realty broker who has at least ten years experience in commercial real
estate brokerage and/or appraisal in the Greater Boston area, and who is
familiar with similar commercial property in the Lexington area, they shall
confer, and each shall recommend a market rate by writing to the parties. In the
event their recommendations are joint or equal, this shall be market rate. If
the recommendations differ by 5% or less, their average shall be deemed market
rate. In the event their rates differ by a greater amount they shall jointly
nominate a third such broker who shall make an independent recommendation of
market rate.  The two closest of the three recommendations shall then be
averaged to establish the market rate. Each party hereto shall pay the expense
of its nominee broker, and each shall share equally the expense of a third, if
required. However, in no event shall market rate, determined as aforesaid, be
less than the rate then payable at the time of exercise of the option, by the
LESSEE. The Market Rate shall be binding on both parties and shall be reflected
in a Lease amendment.

                                      -2-
<PAGE>

                                   EXHIBIT B.
                              BUILDOUT OBLIGATIONS

A.        LESSOR's OBLIGATIONS

The LESSOR shall deliver the Leased Premises, on or before December 1, 1997, in
conformance with plans and specifications agreed between the parties with
respect to the layout and location of offices, rooms, corridors, lighting,
bathrooms, plumbing, electrical services, floors, dock area and climate
controls, as referenced in Exhibit A. ("Tenant Improvements"). The LESSOR shall
deliver the premises completed, upon issuance of a Certificate of Occupancy,
free and clear of all tenants or occupants, and in compliance with local laws,
building codes and regulations. In event "Punch List" items remain to be
completed, such as touch up paint, adjustments to doors etc., the LESSOR shall
complete these items within ten days of the Commencement Date.

In the event, through no delay or fault of LESSEE, the LESSOR fails to deliver
the premises by December 1, 1997 LESSOR agreed to share one half of the penalty
in rental premium suffered by the LESSEE, due to hold over beyond November 30,
1997 in the lease of premises at Natick, up to Five Thousand ($5,000.00).  If
payable that amount will be credited to LESSEE upon occupancy.

In the event the premises are suitable for occupancy prior to December 1, 1997,
LESSEE may have use and occupancy of the premises upon that Commencement Date.
In that event rent will commence on December 1, 1997.

The Building, rest rooms and common areas, shall be in compliance with the
Americans with Disabilities Act of 1990, as amended. LESSOR shall remedy any
deficiencies in the building systems or in the Tenant Improvements at its sole
cost, promptly following receipt of notice of any deficiency.

LESSOR shall afford LESSEE access to the premises prior to the Commencement Date
for the purpose of installing cabling, telephone lines and equipment, subject to
the prior conditions that such access shall not interfere with or impede the
LESSOR's work on Tenant Improvements, and such LESSEE work shall comply with
schedules and in a manner agreed with the LESSOR's supervisor on site.

In the event that the LESSOR fails to deliver the premises for occupancy by the
LESSEE prior to January 1, 1998, due to no fault or delay by LESSEE, the LESSEE
may upon ten days written notice cancel this Lease Agreement without penalty or
further obligation on either party.

B.        LESSEE's OBLIGATIONS

LESSEE shall be responsible to provide architectural plans for the layout,
design and specifications for construction of all tenant improvements and to
obtain LESSOR's prior approval of such layout and design. Specifications for the
kind, type and quality of material and finish shall be consistent with the kind,
type and quality of materials and finish installed in the leased premises of
Spectrum Medical Technologies, Inc. at 45 Hartwell Ave. Lexington.

In the event of changes in layout or specification by the LESSEE, such changes
shall be defined in plans submitted to the LESSOR. In the event such changes
would result in either delay in work completion or increase in costs of buildout
LESSOR shall notify LESSEE, in writing, within five business days, and LESSEE
may accept the delay or charges, or waive the changes, in writing, within three
business days.

C.        SPECIAL PROVISION FOR FINANCING

                                      -3-
<PAGE>

LESSEE may from time to time grant security interests in or make equipment
leases with respect to LESSEE's current or future installations, fixtures,
equipment, improvements, additions and property in the Leased Premises in order
to finance the same or LESSEE's business, and LESSOR shall upon LESSEE's request
execute and deliver reasonable instruments confirming the same.

                                   EXHIBIT C
                               CLEANING SCHEDULE

                     INTENTIONALLY OMITTED FROM THIS LEASE

                                      -4-
<PAGE>

                                   EXHIBIT D.

                   RIGHT OF FIRST REFUSAL ON ADDITIONAL SPACE

                     INTENTIONALLY OMITTED FROM THIS LEASE

                                      -5-
<PAGE>

                                   EXHIBIT E

                        EXCLUSIONS FROM OPERATING COSTS
                        -------------------------------

The following items shall be excluded in computing LESSEE'S share of Operating
costs applicable to the Leased Premises:

1.        Any ground lease rental;

2.        Costs of capital repairs or capital replacements (except as
specifically permitted in this paragraph 2), capital improvements and equipment;
except those: (a) required by laws enacted on or after the date the temporary
certificate of occupancy issued for the LESSEE work shall be validly issued with
the cost of any such improvements and equipment depreciated or amortized over
the usual life of the improvement and/or equipment, or (b) installed at the
Leased Premises to reduce operating costs, with the cost of any such
improvements and equipment depreciated or amortized at an annual rate reasonably
calculated to equal the amount of operating costs to be saved in each calendar
year throughout the term (as determined at the time LESSOR elected to proceed
with the capital improvement or acquisition of the capital equipment to reduce
operating costs); however, as respects (a) and (b) above, only depreciation or
amortization attributable to a given calendar year shall be included in
operating costs for such year. Depreciation or amortization shall be calculated
on straight line basis and at interest rates calculated at market rates and
terms then prevailing for borrowers similar to LESSOR.

3.        Rentals for items (except when needed in connection with normal
repairs and maintenance of the building which shall be permitted) which if
purchased, rather than rented, would constitute a capital improvement
specifically excluded in Subsection 2, above;

4.        Costs incurred by LESSOR for the repair for replacement of damage to
the building or its contents caused by fire or other casualty;

5.        Depreciation, amortization, lender's fees and interest payments except
as permitted pursuant to Subsection 2, above, and, if permitted, then determined
in accordance with generally accepted accounting principles, consistently
applied (as applied to commercial real estate) in accordance with the
anticipated useful life of such item (as reasonably determined by LESSOR);

6.        Overhead and profit increments paid to LESSOR or to subsidiaries or
affiliates of LESSOR for goods and/or services in the building to the extent the
same exceeds the cost of such goods and/or services rendered by unaffiliated
third parties on a competitive basis;

7.        Advertising and promotional expenditures, and the costs of acquiring
and installing signs in or on the building identifying the owner of the
building;

8.        Interest, principal, points and fees on debts or amortization on any
mortgage or mortgages or any other debt instrument encumbering the building or
property;

9.        Any costs associated with gift taxes, excise taxes, income taxes,
transfer taxes or capital levies;

10.       Costs incurred in connection with upgrading the building to comply
with handicap, hazardous material, fire and safety codes which were in effect
prior to the date of the lease or which become effective after date of the
Lease;

11.       Tax penalties incurred as a result of LESSOR's negligence, inability
or unwillingness to make payments when due, not attributable to LESSEE's failure
to make payments to LESSOR for such items in accordance with the lease;

                                      -6-
<PAGE>

12.       Any and all costs arising from the presence of hazardous materials or
substances (as defined by applicable Federal, Massachusetts and local laws) now
or hereafter pertaining to the building ("Hazardous Substances") and property in
or about the building including, without limitation, Hazardous Substances in the
ground, water, or soil;

13.       LESSOR's general corporate overhead and general and administrative
expenses except as contained and allowed in the 5% Management Fee per provision
in Clause 6.B, above;

14.       Costs of any items for which LESSOR is reimbursed by insurance, or
otherwise compensated by parties other than LESSEE's of the building;

15.       Any legal fees associated with the sale or refinancing of the
building;

16.       Costs for any separate utility meters LESSOR may install in the
building, unless the installation is required by a utility company or
governmental entity;

17.       Costs for construction for compliance with, or penalties assessed for
non-compliance with the Americans with Disabilities Act of 1990 (42. U.S.C.
1281-1283);

18.       Expenses incurred as a result of the LESSOR's negligence or the
negligence of another lessee;

19.       Costs of procuring tenants for the building, including without
limitation advertising, brokerage commissions and inducements paid or credited
to such tenants for buildout costs;

20.       Costs for special work or services to particular tenants.

                                      -7-

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