LEASE AGREEMENT

           This Lease Agreement, made this 16th day of December 1991, between KK
Three Corporation, a Minnesota Corporation, (hereinafter called "Landlord", and
Genetic Laboratories, Wound Care, Inc., a Minnesota Corporation, (hereinafter
called "Tenant",

           Witnesseth, That:

           1. DEMISED PREMISES. Landlord, subject to the terms and conditions
hereof, hereby leases to Tenant the premises (hereinafter referred to as the
"Demised Premises") shown outlined in red on the floor plan attached hereto as
Exhibit A and comprising approximately 3,352 square feet of area of office space
and 3,471 square feet of warehouse space for a total of 6,983 square feet in the
building known as Roseville Business Commons located at 2726 Patton Road,
Roseville, Minnesota in Roseville, Minnesota (hereinafter referred to as the
"Building"), to be used by Tenant for general office showroom and/or warehouse
uses and purposes and for no other use or purposes. The Building, the parcel of
land on which it is built, and all improvements thereon are hereinafter referred
to as the "Project."

           2. TERM. Tenant takes the Demised Premises from Landlord, upon the
terms and conditions herein contained, to have and to hold the same for the term
("Lease Term") of Five (5) years and (---) months commencing on the 1st day of
February 1992, and ending on the 30th day of March, 1997, unless sooner
terminated as herein provided.

           a. If the Landlord, for any reason whatsoever, cannot deliver
possession of the said Premises to the Tenant at the commencement of the Lease
Term hereof, this Lease shall not be void or voidable, not shall Landlord be
liable to Tenant for any loss or damage resulting therefrom, nor shall the
expiration date of the above Lease Term be in any way extended, but in that
event, all rent shall be abated during the period between the commencement of
said Lease Term and the time when Landlord delivers possession.

           b. In the event that Landlord shall permit Tenant to occupy the
Demised Premises prior to the commencement date of the Lease Term, such
occupancy shall be subject to all the provisions of this Lease. Said early
possession shall not advance the termination date hereinabove provided.

           3. BASE RENT. Tenant shall pay to Landlord during the Lease Term a
monthly base rent of Two Thousand Nine Hundred Eight-five and 06/100 Dollars
($2,985.00), payable on or before the first day of each month in advance at the
office of Landlord at 2660 Cleveland Avenue North, Roseville, Minnesota 55113,
or at such other place as may from time to time be designated by Landlord.

           4. OPERATING COSTS. Tenant shall, for the entire Lease Term, pay to
Landlord as additional rent, without any set-off or deduction therefrom, its
proportionate share of all costs which Landlord may incur in owning,
maintaining, and operating the Project. Said costs are referred to herein as
"Operating Costs" and are hereby defined to include, but shall not be limited
to, all real estate taxes and annual installments of special assessments payable
with respect to the Project, maintenance, repair, replacement and care of all
heating, lighting, plumbing and air conditioning fixtures, equipment and systems
serving the common areas, parking and landscape areas, signs, snow removal,
non-structural repair and maintenance of the exterior of the Building (including
the costs of equipment purchased and used for such purposes), insurance
premiums, management fees, wages and fringe benefits of personnel employed for
such work. Operating Costs shall also include the yearly amortization of capital
costs incurred by Landlord for improvements or structural repairs to the Project
required to comply with any change in the law, rules or regulations of any
governmental authority having jurisdiction, or for purposes of reducing
Operating costs, which costs shall be amortized over the useful life of such
improvements or repairs, as reasonably estimated by Landlord. Operating Costs
shall not include depreciation, costs of tenant improvements and payments of
principal and interest on any mortgages covering the Project. Tenant's
proportionate share of operating expenses shall be that fraction, the numerator
of which is the area of Tenant's Demised Premises and the denominator of which
is the total area of the Building.

           As soon as reasonably practicable prior to the commencement of each
calendar year during the Lease Term, Landlord shall furnish to Tenant an
estimate of Tenant's share of Operating Costs, if any, for the ensuing calendar
year and Tenant shall pay, as additional rent hereunder together with each
installment of monthly base rent, one-twelfth (1/12th) of its estimated annual
share of such Operating Costs. As soon as reasonably practicable after the end
of each calendar year, Landlord shall furnish to Tenant a certified statement of
the actual Operating Costs for the previous calendar year, including the actual
Operating Costs for the previous calendar year, including Tenant's share of such
amount, and within thirty (30) days thereafter Tenant shall pay to Landlord, or
Landlord to Tenant as the case may be, the different between such actual and
estimated Operating Costs paid by Tenant. Tenant's share of such excess
Operating Costs for the years in which this Lease commences and terminates shall
be prorated based upon the dates of commencement and termination of the Lease
Term.

           5. ADDITIONAL TAXES. Tenant shall pay as additional rent to Landlord,
together with, but as a separate payment, each installment of monthly base rent,
the amount of any gross receipts tax, sales tax or similar tax (but, excluding
therefrom any income tax) payable, or which will be payable, by Landlord, by
reason of the receipt of the monthly base rent and adjustments thereto.

           6. UTILITIES. Landlord shall provide mains and conduits to supply
water, gas, electricity and sanitary sewage to the Demised Premises. Tenant
shall pay, when due, either directly to the utility company if billed
individually or to Landlord if billed as an operating expense, all charges for
sewer usage or rental, garbage disposal, refuse removal, water, electricity,
gas, telephone and/or other utility services or energy source furnished to the
Demised Premises during the term of this Lease, or any renewal or extension
thereof. Landlord shall not exceed the rate Tenant would be required to pay to a
utility company or service company furnishing any of the foregoing utilities or
services. The charges thereof shall be deemed operating costs in accordance with
Section 4 if the charges are not billed directly to the Tenant by the utility
company.

           7. CARE AND REPAIR OF DEMISED PREMISES. Tenant shall, at all times
throughout the terms of this Lease, including renewals and extensions, and at
its sole expense, keep and maintain the Demised Premises in a clean, safe,
sanitary and first class condition and in compliance with all applicable laws,
codes, ordinances, rules and regulations. Tenant's obligations hereunder shall
include but not be limited to the maintenance, repair and replacement, if
necessary, of heating, air conditioning fixtures, equipment and systems, all
lighting and plumbing fixtures and equipment, fixtures, motors and machinery,
all interior walls, partitions, doors and windows, including the regular
painting thereof, all exterior entrances, windows, doors, and docks and the
replacement of all broken glass. When used in this provision, the term "repairs"
shall include replacements or renewals when necessary, and all such repairs made
by the Tenant, shall keep and maintain all portions of the Demised Premises and
the sidewalk and areas adjoining the same in a clean and orderly condition, free
of accumulation of dirt and rubbish.
           If Tenant fails, refuses or neglects to maintain or repair the
Demised Premises as required in this Lease after notice shall have been given
Tenant, Landlord may make such repairs without liability to Tenant for any loss
or damage that may accrue to Tenant's merchandise, fixtures or other property or
to Tenant's business by reason thereof, and upon completion thereof, Tenant
shall pay to Landlord all costs plus 15% for overhead incurred by Landlord in
making such repairs upon presentation to Tenant of bill therefor. Landlord shall
keep the foundation, exterior walls (except plate glass or glass or other
breakable materials used in structural portions) and roof in good repair, and if
necessary or required by proper governmental authority, make modifications or
replacements thereof, except that Landlord shall not be required to make any
such repairs, modifications or replacements which become necessary or desirable
by reason of the negligence of Tenant, its agents, servants or employees, or by
reason of anyone illegally entering or upon the premises.

           The Landlord shall manage all outside maintenance of the Demised
Premises, including grounds and parking areas. The costs of said maintenance
shall be prorated in accordance with Section 4 of this Lease. All such
maintenance which is provided by Landlord shall be provided as reasonably
necessary for the comfortable use and occupancy of Demised Premises during
business hours, except Saturdays, Sundays, and holidays, upon the condition that
the Landlord shall not be liable for damages for failure to do so due to causes
beyond its control.

           8. CONSTRUCTION OF DEMISED PREMISES. Landlord agrees that it shall
construct the Demised Premises in accordance with the specifications in Exhibit
B attached hereto.

           9.  OBLIGATIONS OF TENANT.  Tenant agrees that it shall;

           a. Observe such rules and regulations as from time to time may be put
in effect by Landlord for the general safety, comfort and convenience of
Landlord, occupants and tenants of said Building.

           b. Give Landlord access to the Demised Premises at all reasonable
times, without charge or diminution of rent, to enable Landlord to examine the
same and to make such repairs, additions and alterations as Landlord may deem
advisable.

           c. Keep the Demised Premises in good order and condition and replace
all broken glass with glass of the same quality as that broken, save only glass
broken by fire and extended coverage type risks, the cost of which is reimbursed
by the insurance carrier, and commit no waste on the Demised Premises.

           d. Pay for all electric lamps, starters and ballasts as replaced in
the demised Premises.

           e. Upon the termination of this Lease in any manner whatsoever,
remove Tenant's goods and effects and those of any other person claiming under
Tenant, and quit and deliver up the demised Premises to Landlord peaceably and
quietly in as good order and condition as the same are now in or hereafter may
be put in by Landlord or Tenant, reasonable use and wear thereof and repairs
which are Landlord's obligation excepted. Goods and effects not removed by
Tenant at the termination of this Lease, however terminate, shall be considered
abandoned and Landlord may dispose of the same as it deems expedient.

           f. Not either voluntarily or by operation of law, assign, transfer,
mortgage, pledge, hypothecate or encumber this Lease or any interest therein,
and shall not sublet the Premises or any part thereof, or any right or privilege
appurtenant thereto, or suffer any other person (the employees, agents, servants
and invitees of tenant excepted) to occupy or use the Premises or any portion
thereof, without the prior written consent of Landlord. Notwithstanding the
foregoing, any subtenant or assignee must have at least the financial strength
of the original Tenant. Consent to one assignment, subletting, occupation or use
by any other person shall not be deemed to be a consent to any subsequent
assignment, subletting, occupation or use by another person. Any such assignment
or subletting without such consent shall be void, and shall, at the option of
Landlord, constitute a default under this Lease. Regardless of Landlord's
consent, no subletting or assignment shall release Tenant of Tenant's obligation
to pay the rent and perform all other obligations to be performed by Tenant
hereunder for the term of this Lease. The acceptance of rent by Landlord from
any other person shall not be deemed to be a waiver by Landlord of any provision
hereof or any right hereunder. Any subrent charged to subtenant by Tenant which
is in excess of the rent charged by Landlord to Tenant shall be passed on in
full to the Landlord. Any such subrent, in no event, may be based on net income.

           g. Not place signs on or about the Demised Premises without first
obtaining Landlord's written consent thereto. Tenant's signs on exterior of
Building shall conform to sign criteria attached.

           h. Not overload, damage or deface the Demised Premises or do any act
which may make void or voidable any insurance on the Demised Premises or the
Building or which may render an increased or extra premium payable for
insurance.

           i. Not make any alterations of or additions to the Demised Premises
without the written approval of the Landlord, and alterations or improvements
which may be made by either of the parties hereto upon the Demised Premises,
except movable office furnishings, shall be the property of the Landlord, and
shall remain upon and be surrendered with the Demised Premises, as a part
thereof, at the termination of this Lease or any extension thereof.

           j. Keep the demised Premises and the property in which the Demised
Premises are situated free from any liens arising out of any work performed,
materials furnished or obligations incurred by Tenant. Landlord may require, at
Landlord's sole option, that Tenant shall provide to Landlord, at Tenant's sole
cost and expense, a lien and completion bond in an amount equal to one and
one-half (1-1/2) times any and all estimated cost of any improvements,
additions, or alterations in the Demised Premises, to insure Landlord against
any liability for mechanics' and materialmen's lien and to insure completion of
the work.

           k. Cause to be performed by a competent service company, preventative
maintenance of all roof top HVAC units and warehouse unit heaters serving the
Demised Premises, as recommended by the equipment manufacturer.

           l. Not place any additional locks on any of Tenant's doors without
the written consent of the Landlord. The Landlord shall have the right to keep
pass keys to the Demised Premises. Tenant's obligations under this paragraph
numbered 9 to do or not to do a specified act shall extend to and include
Tenant's obligations to see to it that Tenant's employees, agents and invitees
shall do or shall not do such acts, as the case may be.

           10. PARKING AND DRIVES. THE Tenant, its employees, and invitees shall
have the non-exclusive right to use the common driveways and parking lots along
with the other tenants and customers of the Building. The use of such driveways
and parking facilities are subject to such reasonable rules and regulations as
the Landlord may impose. The Tenant further agrees not to use, or permit the use
by it employees, the parking areas for the overnight storage of automobiles or
other vehicles without the written permission of Landlord.

           11. CASUALTY LOSS. In case of damage to the Demised Premises or the
Building by fire or other casualty, Tenant shall give immediate notice to
Landlord who shall thereupon cause the damage to be repaired with reasonable
speed at the expense of the Landlord subject to delays which may arise by reason
of adjustment of loss under insurance policies and for delays beyond the
reasonable control or Landlord, and to the extent that the Demised Premises are
rendered untenantable, the rent shall proportionately abate, except in the event
such damage resulted from or was contributed to by the act, fault or neglect of
Tenant, Tenant's employees or agents, in which event there shall be no abatement
of rent. In the event the damage shall be so extensive that the Landlord, in its
sole discretion, shall decide not to repair or rebuild, this Lease shall, at the
option of Landlord, be terminated as of the date of such damage by written
notices from the Landlord to the Tenant, and the rent shall be adjusted to the
date of such damage and Tenant shall thereupon promptly vacate the Demised
Premises.

           12. INDEMNITY AND INSURANCE. Tenant agrees to indemnify and save
harmless Landlord from and against all claims of whatever nature arising from
any act, omission or negligence of Tenant, or accident, injury or damage
whatsoever caused to any person or to the property of any person during the term
hereof in or about the Demised Premises or arising from any accident, injury or
damage during the term hereof, outside of the Demised Premises but within the
Project where such accident, injury or damage results or is claimed to have
resulted from an act or omission on the part of Tenant or Tenant's officers,
agents, servants, licensees or contractors. This indemnity and hold harmless
agreement shall include indemnity against all costs, expenses and liabilities
incurred in connection with any such claim or proceeding brought thereon and the
defense thereof.

           Tenant agrees to use and occupy the Demised Premises and to use all
other portions of the Project at its own risk, and further agrees that Landlord
shall have no responsibility or liability for any loss of or damage to fixtures,
equipment, merchandise or other personal property of Tenant.

           Tenant shall not carry any stock of goods or do anything in or about
said Demised Premises which will in any way tend to increase insurance rates on
said Demised Premises or the Building in which the same are located. If Landlord
shall consent to such use, Tenant agrees to pay as additional rental any
increase in premiums for insurance, against loss by fire or extended coverage
risks resulting from the business carried on in the Demised Premises by Tenant.
If Tenant installs any electrical equipment that overloads the power lines to
the Building, Tenant shall, at its own expense, make whatever changes are
necessary to comply with the requirements of insurance underwriters and
insurance rating bureaus and governmental authorities having jurisdiction.

           Tenant agrees to procure and maintain a policy or policies of
insurance, at its own cost and expense, insuring Landlord and Tenant from all
claims, demands, or actions made by or on behalf of any person or persons, firm,
or corporation arising from related to, or connected with the conduct and
operation of Tenant's business in the Demised Premises for injury to or death of
one or more persons and for damage to property in the combined single limit of
not less than $500,000 each occurrence. Tenant shall carry like coverage against
loss or damage by boiler or internal explosion by boilers, if there is a boiler
in the Demised Premises. Said insurance shall not be subject to cancellation
except after at least thirty (30) days' prior written notice to Landlord, and
the policy or policies, or duly executed certificate or certificates for the
same, together with satisfactory evidence of the payment of premium thereon,
shall be deposited with Landlord at the commencement of the term and renewals
thereof no less than thirty (30) days prior to the expiration of the term of
such coverage. If Tenant fails to comply with such requirement, Landlord may
obtain such insurance and keep the same in effect, and Tenant shall pay Landlord
the premium cost thereof upon demand.

           Landlord shall procure at its own expense during the term of this
Lease, fire, windstorm, extended coverage, such other insurance as Landlord may
obtain, and rental loss insurance on the Project, provided, however, Tenant
shall reimburse Landlord for its share of the actual net cost and expense to
Landlord of such fire, windstorm, extended coverage, and rental loss insurance.

           Tenant shall procure at its own expense from the time Tenant takes
possession until the end of the Lease Term, fire, extended coverage, vandalism,
and sprinkler leakage insurance on the Demised Premises. This property insurance
shall include improvements, signs, fixtures, and floor coverings furnished by
Landlord.

           Each of the Landlord and Tenant hereby releases the other from any
and all liability or responsibility, to the other or anyone claiming through or
under them by way of subrogation or otherwise, for any loss or damage to
property caused by fire or any other insured peril, even if such fire or other
casualty shall have been caused by the fault or negligence of the other party or
anyone for whom such party may be responsible. Tenant also agrees to obtain a
waiver of subrogation from its insurer, subject to availability.

           13. EMINENT DOMAIN. If the entire Demised Premises are taken by
eminent domain, this Lease shall automatically terminate as of the date of
taking. If a portion of the demised Premises are taken by eminent domain,
Landlord shall have the right to terminate this Lease as of the date of taking
by giving written notice thereof to Tenant within ninety (90) days after such
date of taking. If Landlord does not elect to terminate this Lease, it shall, at
its expense, subject to receipt of condemnation aware proceedings, restore the
Demised Premises, exclusive of any improvements or other changes made therein by
Tenant, to as near the condition which existed immediately prior to the date of
taking as reasonably possible, and to the extent that the demised Premises are
rendered untenantable, the rent shall proportionately abate. All damages awarded
for a taking under the power of eminent domain shall belong to and be the
exclusive property of Landlord, whether such damages be awarded as compensation
for diminution in value of the leasehold estate hereby created or to the fee of
the Demised Premises; provided, however, that Landlord shall not be entitled to
any separate award made to Tenant for the value and cost of removal of its
personal property and fixtures.

           14. DEFAULT. Tenant hereby agrees that in case Tenant shall default
in making its payments hereunder or any of them or in performing any of the
other agreements, terms and conditions of this Lease, then, in any such event,
Landlord, in addition to all other rights and remedies available to Landlord, by
law or by other provisions hereof, may, without process, re-enter immediately
into the demised Premises and remove all persons and property therefrom, and, at
Landlord's option, annul and cancel this Lease as to all future rights of
Tenant, and Tenant hereby expressly waives the service of any notice in writing
or intention to re-enter as aforesaid. Landlord, in addition to the foregoing,
may also accelerate rent due and owing for the remainder of the term. Tenant
further agrees that in case of any such termination Tenant will indemnity the
Landlord against all loss of rents and other damage which Landlord may incur by
reason of such termination, including, but not being limited to, costs or
restoring and repairing the demised Premises and putting the same in rentable
condition, costs of renting the Demised Premises to another tenant, loss or
diminution of rents and other damage which Landlord may incur by reason of such
termination, and all reasonable attorney's fees and expenses incurred in
enforcing any of the terms of this Lease. Neither acceptance of rent by
Landlord, with or without knowledge of breach, nor failure of Landlord to take
action on account of any breach hereof or to enforce its rights hereunder shall
be deemed a waiver of any breach, and absent written notice or consent, said
breach shall be a continuing one.

           15. NOTICES. All bills, statements, notices or communications which
Landlord may desire or be required to give to Tenant shall be deemed
sufficiently given or rendered if in writing and either delivered to Tenant
personally or sent by registered or certified mail addressed to Tenant at the
Building, and the time of rendition thereof or the giving of such notice or
communication shall be deemed to be the time when the same is delivered to
Tenant or deposited in the mail as herein provided. Any notice by Tenant to
Landlord must be served by registered or certified mail addressed to Landlord at
the address where the last previous rental hereunder was payable, or in case of
subsequent change upon notice given, to the latest address furnished.

           16. HOLDING OVER. Should Tenant continue to occupy the demised
Premises after expiration of said Lease Term or any renewal or renewals thereof,
or after a forfeiture is incurred, such tenancy shall be from month to month and
in no event from year to year or for any longer term. The monthly base rent
during such month-to-month tenancy shall be two (2) times the amount of the
monthly base rent set forth in Paragraph 3 on Page 1 of this Lease.

           17. SUBORDINATION. The rights of Tenant shall be subordinate to the
lien of any first mortgage now or hereafter in force against the real estate on
or in which the Demised Premises are located, and Tenant shall execute such
further instruments subordinating this Lease to the lien or liens of any such
mortgage or mortgages as shall be requested by the Landlord. Notwithstanding the
foregoing provisions, the Tenant agrees that any First Mortgagee will have the
right at any time to subordinate any rights of such First Mortgagee to the
rights of the Tenant under this Lease on such terms and subject to such
conditions as such Fort Mortgagee deems appropriate.

           18. ESTOPPEL CERTIFICATE. Tenant shall at any time and from time to
time upon not less than ten (10) days' prior written notice from Landlord
execute, acknowledge and deliver to Landlord a statement in writing, (a)
certifying that this Lease if unmodified and in full force and effect (or, if
modified, stating the nature of such modification and certifying that this Lease
as so modified, is in full force and effect), and the date to which the rental
and other charges are paid in advance, if any, and (b) acknowledging that there
are not, to Tenant's knowledge, any uncured defaults on the part of the Landlord
hereunder, or specifying such defaults, if any are claimed. Any such statement
may be relied upon by any prospective purchaser or encumbrancer of all or any
portion of the real property of which the Demised Premises are a part. Failure
to sign the statement or failure to specify any default claimed shall be deemed
approval of the statement submitted to Tenant by Landlord.

           19. MORTGAGEE PROTECTION. Tenant agrees to send any mortgagees and/or
deed of trust holders, by registered mail, a copy of any Notice of Default
served by Tenant upon the Landlord, provided that prior to such notice Tenant
has been notified, in writing by way of note of assignment of rents or
otherwise, of the addresses of such mortgagees and/or deed of trust holders.
Tenant agrees to send such notices to Teachers Insurance and Annuity
Association, 730 Third Avenue, New York, New York, 10017, Attention: Senior Vice
President, Mortgage Department. Tenant further agrees that if Landlord shall
have failed to cure such default within the time provided for in this Lease, any
such mortgagees and/or deed of trust holders shall have an additional thirty
(30) days within which to cure such default or if such default cannot be cured
within that time, then such additional time as may be reasonably necessary, if
within such thirty (30) days, any mortgagee and/or deed of trust holder has
commenced and is diligently pursuing the remedies necessary to cure such default
(including but not limited to commencement of foreclosure proceedings).

           20. SERVICE CHARGE. Tenant agrees to pay a service charge equal to
one percent (1%) per month or any portion thereof of any payment of monthly base
rent or additional charge payable by Tenant hereunder which is not paid within
ten (10) days from the date due, or $5.00 per month or portion thereof,
whichever is greater.

           21. SECURITY DEPOSIT. Tenant has deposited with Landlord the sum of
One Thousand One Hundred Seventy-five and 00/100 Dollars ($1,175.00). Said sum
shall be held by Landlord as security for the faithful performance by Tenant of
all the terms, covenants, and conditions of this Lease to be kept and preformed
by Tenant during the term hereof. If Tenant defaults with respect to any
provision of this Lease, including, but not limited to the provisions relating
to the payment of rent, Landlord may (but shall not be required to) use, apply
or retain all or any part of this security deposit for the payment of any rent
or any other sum in default, or for the payment of any amount which Landlord may
spend or become obligated to spend by reason of Tenant's default, or to
compensate Landlord for any other loss or damage which Landlord may suffer by
reason of Tenant's default. If any portion of said security deposit is so used
or applied, Tenant shall within five (5) days after written demand therefor,
deposit cash with Landlord in an amount sufficient to restore the security
deposit to its original amount and Tenant's failure to do so shall be a material
breach of this Lease. Landlord shall not be required to keep this security
deposit separate from its general funds, and Tenant shall not be entitled to
interest on such deposit. If Tenant shall fully and faithfully perform every
provision of this Lease to be performed by it, the security deposit or any
balance thereof shall be returned to Tenant (or, at Landlord's option, to the
last assignee of Tenant's interest hereunder) at the expiration of the Lease
Term. In the event of termination of Landlord's interest in this Lease, Landlord
shall transfer said deposit to Landlord's successor in interest.

           22. PROPERTY TAXES. Tenant shall pay, or cause to be paid, before
delinquency, any and all taxes levied or assessed and which become payable
during the term hereof upon all Tenant's leasehold improvements, equipment,
furniture, fixtures, and personal property located in the Premises, except that
which has been paid for by Landlord, and is the standard of the Building. In the
event any or all of the Tenant's leasehold improvements, equipment, furniture,
fixtures and personal property shall be assessed and taxed with the Building,
Tenant shall pay to Landlord its share of such taxes within ten (10) days after
delivery to Tenant by Landlord of a statement in writing setting forth the
amount of such taxes applicable to Tenant's property.

           23. NOVATION IN EVENT OF SALE OR TRANSFER. In the event of the sale
of the Building or the transfer of the title thereto, Landlord shall be relieved
of all of the covenants and obligations created by this Lease, except as to
breaches thereof occurring prior to such sale or transfer, and such sale or
transfer shall automatically result in the purchaser or transferee assuming and
agreeing to carry out all of the covenants and obligations of Landlord herein
from and after such sale or transfer.

           24. DISPLAYS. Tenant shall not display or suffer to be displayed on
the outside of the Demised Premises, on the outside of the Building or on the
sidewalks, driveways, or parking areas adjoining the Building any goods or
merchandise whatsoever, except with Landlord's written consent.
           25. INTERRUPTION OF SERVICES. No liability shall attach to Landlord
for any inconvenience, loss, or damage sustained by Tenant or any other person,
or to the property of Tenant of such other person, due to interruption of
electric power, water, or gas to the Building or to the Demised Premises or by
reason of the failure of any piping, wiring, or apparatus in the Building or for
any inconvenience, loss or damage sustained by Tenant as a result of any of the
causes set forth in the paragraph captioned "Indemnity and Insurance" or caused
by any act or thing done or suffered to be done by any other tenant of the
Building or any servant, employee, agent, invitee, or customer of Tenant.
However, the Landlord shall make all reasonable effort to remedy such
interruption of services.

           26. ZONING. The Tenant covenants that it has satisfied itself prior
to execution of this Lease that the Demised Premises are properly zoned to
permit the Tenant's intended use of the Demised Premises. Any changes with
respect to the interior finishing of the premises in order to comply with any
local or municipal by-laws shall be at the sole expense of the Tenant.

           27. QUIET ENJOYMENT. Conditional upon the faithful performance of the
terms, covenants and provisions herein contained by the Tenant, Landlord
covenants that Tenant shall quietly have, hold and enjoy the Demised Premises
for the term hereof except or otherwise herein provided.

           28. JANITORIAL SERVICES. Tenant shall provide all janitorial and at
the option of Landlord all refuse removal services for the Demised Premises, at
the expense of Tenant.

           29.  ADDITIONAL PROVISIONS.  See Addendum.

           30. MEMORANDUM. Upon the request of either Landlord or Tenant, the
parties shall enter into a memorandum, in recordable form, setting forth a
summary of the terms hereof relating only to the description of the Demised
Premises, the term hereof, and the conditions of assignment of subletting.

           31. GENERAL. This Lease does not create the relationship of Principal
and agent or of partnership or of joint venture or of any association between
Landlord and Tenant, the sole relationship between Landlord and Tenant being
that of lessor and lessee. No waiver of any default of Tenant hereunder shall be
implied from any omission by Landlord to take any action on account or such
default if such default persists or is repeated, and no express waiver shall
affect any default other than the default specified in the express waiver and
that only for the time and to the extent therein stated. Each term and each
provision of this Lease performable by Tenant shall be construed to be both a
covenant and a condition. The topical headings of the several paragraphs and
clauses are for convenience only and do not define, limit or construe the
contents of such paragraphs or clauses.

           All preliminary negotiations are merged into and incorporated in this
Lease. This Lease can only be modified or amended by an Agreement in writing
signed by the Parties hereto. All provisions hereof shall be binding upon the
heirs, successors and assigns of each party hereto.

           In Witness Whereof, the parties hereto have executed this Lease the
day and year first above written.


In Presence of:                       LANDLORD: KK Three Corporation
                                      Minnesota General Partnership

__________________________________    By __________________________________

__________________________________    Its __________________________________

In Presence of:                       TENANT: Genetic Laboratories Wound Care,
                                      Inc., a Minnesota Corporation

__________________________________    By __________________________________

__________________________________    Its __________________________________



<PAGE>




                                    ADDENDUM

This Addendum to the Lease dated December 16, 1991, by and between Genetic
Laboratories, Wound Care, Inc., a Minnesota Corporation (Tenant) and KK Three
Corporation, a Minnesota Corporation (Landlord).

This Addendum sets forth additional terms, conditions, and covenants applicable
to the lease of the premises described in the above mentioned Lease (The Lease).
All capitalized terms used herein and not otherwise defined shall have the
meaning ascribed to them in the Lease. In the event of a conflict between the
terms of the Lease and this Addendum, the terms of the Addendum shall govern.

The parties further agree as follows:

1.         CONCESSIONS: Landlord shall provide Tenant with $15,000.00 payment,
           payable upon occupancy and to be used as Tenant ----------- deems
           appropriate.

2.         OPTION TO RENEW: Provided that Tenant is not in default of any of the
           terms of the Lease, Tenant shall have one (1) five (5) year option to
           renew this Lease by giving 180 days prior written notice to Landlord.
           The Base Rent for each option period shall be the Base Rent paid at
           the end of the initial lease term, or previous option period
           increased by the consumer price index.

                     The Base Rent shall be increased by multiplying the Base
                     Rent paid in the fifth year of the Lease or the last year
                     of the initial Lease period, whichever is applicable by a
                     fraction, the numerator of which is the Consumer Price
                     Index for All Urban Consumers, 1987 = 100 ("Index')
                     published for the month nearest the date of the
                     commencement of the Option Term, and the denominator of
                     which is the Index published for the month immediately
                     preceding the month in which the initial term commences. If
                     the Index is changed so that the base year differs from
                     that used as of the month immediately preceding the month
                     in which the initial term commences, the Index shall be
                     converted in accordance with the conversion factor
                     published by the United States Department of Labor, Bureau
                     of Labor Statistics. If the Index is discontinued or
                     revised during the term, such other government index or
                     computation with which it is replaced shall be used in
                     order to obtain substantially the same result as would have
                     been obtained if the Index had not been discontinued or
                     revised.

                     In no event shall the Base Rent be less than provided in
this Lease.

3.         EXPANSION SPACE:

           A.        Provided Tenant is not in default under this Lease and
                     Hueblin does not exercise its option to renew, Tenant shall
                     have the right of first opportunity to lease the adjoining
                     approximately 3,547 square feet of space (hereinafter
                     Expansion Space) at then market rental rates plus Operating
                     Costs, and shall run concurrently with the initial lease
                     term and any extension thereof. The effective commencement
                     date of said Expansion Space shall be no later than 60 days
                     after Tenant's Notice to Landlord, whichever is earlier.
                     The parties shall enter into a mutually acceptable Lease
                     within 30 days of Tenant's Notice. All other terms and
                     conditions of the Lease shall be acceptable to said
                     Expansion Space.

B.         If Landlord receives a bona fide offer from a prospective tenant to
           lease all or a portion of the Expansion Space and Landlord desires to
           accept such offer, Landlord shall give notice to Tenant of such
           interested prospective tenant, and Tenant shall then have the first
           opportunity to lease the Expansion Space on the terms set forth in A
           above. To exercise such right, Tenant shall give written notice to
           Landlord that Tenant intends to exercise its right hereunder within
           ten (10) calendar days ("Tenant's Notice") after receiving Landlord's
           notice. In the event that Tenant declines or fails to exercise its
           first right to lease by furnishing Tenant's Notice, such right shall
           terminate and Landlord shall have no further obligation to offer the
           Expansion Space to Tenant.

4.         LEASEHOLD IMPROVEMENTS: Landlord agrees to construct Tenant's Demised
           Premises in accordance with the forthcoming exhibits at no cost to
           Tenant.

           Tenant may make changes or alterations to the floor plan prior to
           construction provided such changes or alterations do not change the
           construction costs of the Demised Premises. Should such changes
           increase the construction costs, such costs shall be born exclusively
           by Tenant and paid prior to occupancy.



-----------------------------------           -------------------------------
Genetic Laboratories, Wound Care, Inc.,       KK Three Corporation,
A Minnesota Corporation                       A Minnesota Corporation

<PAGE>


                                    EXHIBIT B
                                    CONTINUED

1.         WALLS

           A.        Office walls per plan.

           B.         Office/warehouse partition to roof deck above -
                      sheetrocked, taped, sanded and painted on office side only
                      and only to 6 feet.

           C.         Demising walls insulated and sheetrocked to roof deck -
                      sheetrocked, taped, sanded and painted in office area only
                      and only to 6 feet.

           D.         Exterior walls are insulated - only office area exterior
                      walls are sheetrocked, taped, sanded and painted.

II.        CEILING

           A.         Building standard 2' x 4' acoustical ceiling tile at 8' 0"
                      in office area only.

           B.        Exposed bar joist ceiling in warehouse.

III.       LIGHTS

           A.         One (1) building standard recessed fluorescent light
                      fixture per 100 square feet (2' x 4' fixture) in office
                      area only.

           B.         One (1) building standard 6' fluorescent strip light per
                      250 square feet of space in warehouse area, mounted on
                      underside of bar joists.

IV.        ELECTRICAL

           A.        Duplex electrical outlets per plan.

           B.        Light switches per plan.

           C.         One (1) 100 amp, single phase circuit breaker service
                      panel.

           D.         Duplex or fourplex electrical outlet in office/warehouse
                      per plan.

V.         DOORS

           A. Building standard 3'0" x 6' 8" solid core doors with passage
           hardware per plan. B. Building standard 3'0" x 6' 0" sold core doors
           with privacy hardware and closets for bathrooms.

VI.        FLOORS

           A.        Office area will have building standard carpet.
           B.        Warehouse floors will be exposed concrete.
           C.        Bathroom floors will be tile.

VII.       TELEPHONE

           A.        Telephone outlets per plan.


VIII.      H.V.A.C.

           A.         Building standard heating and air conditioning distributed
                      throughout the office area for normal office use.
 
           B.         Gas fired, thermostatically controlled suspended unit
                      heater in the warehouse area.

IX.        SPRINKLER SYSTEM.

           As per city codes.

X.         PLUMBING

           A.        Bathrooms include wall hung type wash basins and toilets as
                     required by code. Provided are ceramic tile floors and base
                     with a ceramic wainscoat on the wet walls.

XI.        SUN PROTECTION

           Window coverings of building standard.


<PAGE>


                             EXTERIOR SIGN CRITERIA

           It is intended that the signing of the building shall have a sense of
           continuity and be developed in an attractive and innovative manner,
           and, in keeping therewith, Landlord shall maintain control of all
           Tenant's signs, which shall be designed and fabricated by Landlord
           (if it so chooses) in a uniform manner and shall be mounted in
           specifically designated areas. The cost of sign fabrication and
           installation shall be borne exclusively by the Landlord.

           The wording of signs shall be limited to the Tenant's business
           identification name only and shall not include items sold or services
           provided. The use of corporate logos or insignias shall be permitted
           provided that the height of such logos or insignias shall not exceed
           the allowable height for sign letters.