Document:

<PAGE>
                                                                   EXHIBIT 10.33

                                    CTI, INC.
                 STOCK RESTRICTION AND NON-COMPETITION AGREEMENT

         THIS IS AN AGREEMENT made as of this 10th day of April, 2001, by and
between CTI, Inc., a Tennessee corporation (the "Company" or "CTI"), and J.
Kelly Milam ("Participant").

                                    RECITALS

         On October 31, 2000, P.E.T.Net Pharmaceutical Services, Inc.
("P.E.T.Net Services") was merged into P.E.T.Net Pharmaceuticals, Inc., a
wholly-owned subsidiary of CTI (the "Merger"). Pursuant to a Merger Agreement
between those parties dated October 10, 2000 ("Merger Agreement"), CTI agreed to
issue CTI stock to the P.E.T.Net Services stockholders and the holders of
Capital Event Stock under the P.E.T.Net Pharmaceutical Services Amended and
Restated Long-Term Incentive Plan. Participant was a stockholder in P.E.T.Net
Services and/or a holder of Capital Event Stock in P.E.T.Net Services. Pursuant
to the Merger Agreement, each P.E.T.Net Services shareholder and holder of
Capital Event Stock is required to execute this Agreement to reflect certain
stock restrictions and competition restrictions associated with the ownership of
CTI stock..

         In consideration of the foregoing, of the mutual covenants herein
contained and for other valuable consideration, the receipt of which is hereby
mutually acknowledged, the parties hereto agree as follows:

                                   AGREEMENTS

         1. STOCK TRANSFER RESTRICTION.

                  A. No shares of CTI stock issued to Participant to effectuate
the Merger ("Merger Shares") may be sold, transferred or assigned, whether
voluntarily or involuntarily, by operation of law or otherwise, except as
provided herein. Any purported sale, transfer or assignment of Merger Shares
other than in accordance with these provisions shall be null and void ab initio.

                  B. Merger Shares may be sold, transferred, or assigned (i) in
accordance with SECTION 1.C below, or (ii) by will or the laws of descent and
distribution.

                  C. Except as permitted by SECTION 1.B above, before any Merger
Shares may be sold, transferred or assigned, such Merger Shares shall first be
offered for sale to the Company in the following manner:

                           (i) The Participant intending to sell, transfer or
assign Merger Shares shall deliver to the Company a written notice (the
"Notice") of the Participant's bona fide intention to sell, transfer or assign
Merger Shares. The Notice shall specify (a) the proposed buyer or buyers, (b)
the number of Merger Shares to be sold or transferred, (c) the price per share,
and (d) the other terms and conditions upon which the Participant

<PAGE>

intends to make such sale or transfer. In the event that any part of the
consideration to be received is other than cash, the Notice shall fully describe
such consideration and state the fair market value thereof. The Company, at its
option and its expense, may in good faith require that the fair market value of
such consideration be determined by an independent appraiser selected by the
Company. In the case of consideration other than cash, the price per share shall
be the fair market value of such consideration as stated in the Notice, unless
the Company exercises its option to require the aforementioned independent
appraisal, in which case the price per share shall be such independently
appraised fair market value.

                           (ii) Within thirty (30) days after receipt of the
Notice, the Company shall have the prior right to purchase the Merger Shares
described in the Notice at the price and on the other terms and conditions
stated in the Notice. The Company may elect to purchase all (but not less than
all) of the Merger Shares described in the Notice by notifying the offering
Participant in writing within such thirty (30) day period, and tendering payment
to the offering Participant within thirty (30) days after giving such notice,
against delivery of an assignment of the Merger Shares, free and clear of all
liens, claims and encumbrances, duly executed by the Participant in favor of the
Company. In the event an appraisal is requested under paragraph (i) above, the
period for payment shall be extended for so long as is reasonably necessary to
obtain the appraisal report.

                           (iii) If the Company does not elect to purchase all
of the Merger Shares described in the Notice as provided in paragraph (i) above,
the Company shall be deemed to have waived its right to acquire such Merger
Shares, and the Participant may sell, assign or transfer such Merger Shares
within the sixty (60) day period following the date of the Notice, provided that
any such sale or transfer is strictly in accordance with the terms and
conditions specified in the Notice. Any Merger Shares so transferred shall
continue to be subject to the right of first refusal provided for herein and the
other terms and conditions hereof. Any such transfer must also be in compliance
with applicable securities laws. If the offering Participant does not sell or
transfer all of the Merger Shares described in the Notice within the aforesaid
sixty (60) days, the Merger Shares shall again become subject to the right of
first refusal provided for herein.

                           (iv) The foregoing restrictions on transfer of Merger
Shares shall terminate upon the sale by the Company of its common stock in an
offering to the public pursuant to a registration statement filed under the
Securities Act of 1933, as amended, underwritten on a firm commitment basis by
an underwriter of nationally recognized standing and yielding gross proceeds to
the Company of at least $35,000,000.

         2. COMPETITION RESTRICTIONS.

                  A. Except as otherwise provided herein or as determined by the
Board of Directors of CTI, until the later of (i) March 15, 2001, or (ii) the
date Participant ceases to hold CTI stock, neither the Participant nor his/her
Affiliates (as defined below) shall engage, directly or indirectly, in the
United States in the business of owning or operating PET Centers (as defined
below) and the Participant and his/her Affiliates shall present to the Company
any and all opportunities known to the Participant and his/her

                                       2
<PAGE>

Affiliate, or to which the Participant and his/her Affiliate becomes privy, and
in which the Participant and his/her Affiliate has an interest in pursuing
pertaining to the acquisition, ownership, or operation of, or investment in, any
PET Centers in the United States. If the Company or its Affiliates are unable or
fail for any reason to pursue a particular opportunity, or if the Board of
Directors determines that the Company or its Affiliates shall not pursue a
particular opportunity, the Participant or his/her Affiliate which presented
such opportunity to the Company shall be free to pursue said opportunity without
restriction, and neither the Company nor the other shareholders or their
Affiliates shall have any right or interest in or with respect to such
opportunity.

                  B. For the purposes hereof, "Affiliate" means as to any person
or entity, a director of such an entity, or any other person or entity who,
directly or indirectly, through one or more intermediaries, Controls or is
Controlled by or under common Control with that entity. For the purposes hereof,
"Control," "Controls," or "Controlled" (and derivatives thereof) means as to a
corporation the right to exercise, directly or indirectly, more than 50% of the
voting rights in the corporation, and as to any other entity the possession,
directly or indirectly, of the power to direct or cause the direction of the
management or policies of the same. For purposes hereof, "PET Center" means
positron emission tomography compound manufacturing and distribution centers.

         3. SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon and
inure to the benefit of the parties hereto and any successors to the business of
the Company, but neither this Agreement nor any rights hereunder shall be
assignable by the Participant.

         4. GOVERNING LAW. The validity, construction, interpretation and effect
of this Agreement shall exclusively be governed by and determined in accordance
with the laws of the State of Tennessee, except to the extent preempted by
federal law.

         THIS AGREEMENT is executed as of the day and year first above written.

                                               CTI, Inc.

                                               By: /s/ Michael Templin
                                                   -----------------------------

                                               Title: Secretary
                                                      -------------------------

                                                   /s/ J. Kelly Milam
                                               ---------------------------------
                                               Participant

                                       3<PAGE>
                                                                   EXHIBIT 10.34

                              SHAREHOLDER AGREEMENT

                  This AGREEMENT is made and entered into by and between CTI,
Inc., a Tennessee corporation (the "Corporation"), and the undersigned
shareholder of the Corporation ("Shareholder"), effective as of the date set
forth hereinbelow.

                                   WITNESSETH:

                  WHEREAS, the Corporation is a corporation formed and organized
under the laws of the State of Tennessee for the purpose of engaging in, among
other activities, the business of developing, manufacturing, marketing and
selling instruments, systems and services to scientific, diagnostic, analytical
and industrial markets; and

                  WHEREAS, Shareholder is an employee of the Corporation or an
affiliate of the Corporation, and the Corporation has granted to Shareholder an
option or options or other rights to purchase, or otherwise acquire, or
Shareholder has heretofore acquired, certain capital stock of the Corporation,
subject to the terms and conditions set forth herein, to which terms and
conditions Shareholder has agreed;

                  NOW, THEREFORE, in consideration of the premises and the
mutual terms, covenants and conditions set forth herein, the parties agree as
follows:

                  1. Shareholder shall not sell or otherwise transfer or dispose
of any of Shareholder's shares of stock of the Corporation, or options to
acquire shares of stock of the Corporation, whenever or however acquired, to any
person, firm, or corporation without the consent of the Corporation unless
Shareholder shall have first made the offer to the Corporation hereinafter
described and such offer shall not have been accepted.

                           a. The offer shall be made in writing to the
Corporation and shall consist of an offer to sell all the shares of the
Corporation owned by Shareholder, to which shall be attached a statement of
Shareholder's intention to sell or otherwise transfer or dispose of some or all
of Shareholder's shares, the name and address of Shareholder's prospective bona
fide purchaser or other transferee, the number of shares involved in the
proposed sale or transfer, and the price and other terms of such sale or
transfer.

                           b. Within thirty (30) days after the receipt of such
offer, the Corporation may, at its option, elect to purchase all, but not less
than all, of the shares of the Corporation offered by Shareholder. The
Corporation shall exercise its election to purchase by giving notice thereof to
Shareholder. The notice shall specify a date for the closing of the purchase
which shall be not more than thirty (30) days after the date of the giving of
such notice. The purchase price for the shares of the Corporation owned by
Shareholder shall be the price therefor offered by the bona fide purchaser or
transferee named in the offer to the Corporation.

                  2. Shareholder shall not encumber any shares of stock of the
Corporation or options to acquire shares of stock of the Corporation to secure
any indebtedness or other obligation without the consent of the Corporation.

<PAGE>

                  3. In the event of any sale or other transfer or encumbrance
of any of Shareholder's shares of stock of the Corporation, whether as permitted
by this Agreement or otherwise, such shares of stock shall be and remain subject
to all of the terms and provision of this Agreement.

                  4. Notwithstanding the foregoing, Shareholder may from time to
time transfer Shareholder's shares of stock of the Corporation to and among
Shareholder's immediate family members, and trusts or by will solely for the
benefit of Shareholder or Shareholder's immediate family members, without
offering the Corporation the right to purchase the shares of the Corporation so
transferred. Provided, however, that in connection with any such transfer such
shares of stock of the Corporation shall be subject to the terms and provisions
of this Agreement and each transferee of such shares shall agree in writing in
advance to be bound by the terms and provisions of this Agreement.

                  5. Shareholder agrees that in the event of the termination of
Shareholder's employment by the Corporation or any affiliate of the Corporation
for any reason, the Corporation shall have the right and option to purchase
Shareholder's shares of stock of the Corporation. Such option may be exercised
within sixty (60) days after such termination of employment. The purchase price
for Shareholder's stock shall be its fair market value.

                  6. Shareholder acknowledges and agrees that the shares of
stock of the corporation subject to this Agreement have not been registered
under the Securities Act of 1933, as amended (The "Act") or the Tennessee
Securities Act of 1980, as amended (The "Tennessee Act"), and may not be sold,
transferred, or otherwise disposed of unless they are first registered under the
Act and The Tennessee Act and all rules and regulations relating to the sale,
transfer, or other disposition of securities thereunder have been complied with,
or until the holder of such shares provides information satisfactory to the
Corporation that such registration and compliance is not required.

                  7. Shareholder agrees that each certificate representing
shares of the Corporation owned by Shareholder, whether now owned or hereafter
acquired, whether pursuant to this Agreement or otherwise, shall have placed
thereon a legend deemed by the Corporation to be appropriate to restrict the
transfer of such shares in accordance with the provisions hereof.

                  8.       a. The terms, covenants and conditions of this
Agreement shall be binding upon and shall inure to the benefit of the parties
hereto and their respective heirs, executors, administrators and permitted
assigns.

                           b. This Agreement shall not be assignable by either
of the parties without the prior written consent of all of the other party.

                           c. This Agreement shall be construed in accordance
with and governed by the laws of the State of Tennessee.

                                       2
<PAGE>

                           d. No change or modification of this Agreement shall
be valid unless the same be in writing and signed by both of the parties hereto.

                  IN WITNESS WHEREOF, the parties have executed this Agreement
this 2nd day of May, 1989.

                                               CTI, INC.

                                               By: /s/ Terry D. Douglass
                                                   -----------------------------

                                               Title: President
                                                      --------------------------

Witness as to Shareholder:                     SHAREHOLDER:

                                               /s/ Michael C. Crabtree
---------------------------------              ---------------------------------

                                       3

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00037-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00037-of-00352.parquet"}]]