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                                                                   Exhibit 10.23



          Amersham Pharmacia Biotech Europe GmbH Tel +49 (0) 761/4519
                                Munzinger Qtr. 9 Fax +49 (0) 761/4510
                               D-79111 Frelburg

Agreement has this day been made between Pharmacia Biotech Europe GmbH,
hereinafter called "the Company" and Mr Lars Erik Utterman (430815), hereinafter
called "the Employee".

SECTION 1 EMPLOYMENT AND EMPLOYEE'S OBLIGATIONS

          The Company hires the Employee for the position as President,
          entrusted with all powers of daily management, as delegated by the
          Board of Directors.

          As President the Employee shall perform his duties as specified yearly
          by the Board of Directors and ensure that the Company is being managed
          in accordance with the law and decrees of Germany and the different
          countries in which the company operates in Europe.

          The Employee shall devote the whole of his working time to his duties
          under this agreement and may not undertake any other duties without a
          written consent from the Chairman of the Board.

          Upon termination of this contract or upon earlier request, the
          Employee shall return all documents, correspondence, reports, material
          and equipment which were available to him during the course of
          employment.

SECTION 2 FIRST DAY OF EMPLOYMENT AND CONTRACT PERIOD

          This agreement shall run from the 1st of July 1994. The employment
          shall be considered to be for an undefinite period.

          If the Employee is made redundant due to restructuring, the Company
          will use its best endeavours to provide the Employee with a position
          within the Pharmacia group commensurate to his level of experience and
          previous status.
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SECTION 3 REMUNERATION

3.1       Base Salary

          The Employee's annual base salary shall be DEM 475.000 payable
          according to local practise. The salary will be reviewed yearly,
          starting on January 1, 1995.

          Any bonuses, gifts or other payments which the Company may grant or
          make to the Employee from time to time, to the extent that they are
          not required by law, by a collective bargaining agreement or by this
          contract, shall be treated as having been granted or made at the
          Company's absolute discretion and shall not be considered a part of
          the Employee's contractual remuneration.

3.3       Bonus Payments

          The Employee will be entitled to a payment based upon individual and
          local company performance. The maximum bonus amount is 25 per cent of
          the basic annual salary and is calculated in accordance with the
          achievement of predetermined objectives. Details regarding objectives
          and incentives will be settled in a separate agreement.

SECTION 4 HOLIDAY ENTITLEMENT

          The Employee shall be entitled to 30 days of holiday in any calendar
          year which will accrue pro-rated month by month from the date of
          commencement. In addition to holiday entitlement, the Employee shall
          be entitled to all statutory, national and public holidays and will be
          paid in accordance with local regulations relating to holiday pay.

SECTION 5 COMPANY CAR

          The Employee is entitled to a Company car in accordance with his
          position as Geschaftsfuhrer and the local Company car scheme as
          published and amended by the Company.

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SECTION 6 EXPENSES

          The Company will reimburse the Employee for all reasonable business
          expenses incurred by him during the course of the employment. The
          Employee must provide receipts and other evidence of such business
          expenses.

SECTION 7 PENSION

          The Company shall yearly pay NLG 42,000 premiums to a pension
          insurance owned by the Employee. The Company's contribution will be
          reviewed in conjunction with the salary review.

SECTION 8 MEDICAL COVER AND INCAPACITY FOR WORK

          In the event of the Employee being prevented from discharging his
          duties, the Company will pay his full salary up to three months.
          Long-term disability is covered through a separate insurance.

SECTION 9 HOME LEAVE

          The Employee and his accompanying family shall be entitled to be
          reimbursed for one trip home for each year of service. The air fare of
          economy class or air travel will be paid the first five years of
          service.

SECTION 10 LANGUAGE TRAINING

          As part of the preparation for this employment the Company agrees to
          pay the cost of basic language courses for the Employee and his spouse
          up to a negotiated amount.
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Section 11  TELEPHONE COST AND DAILY NEWSPAPER

          Costs for business calls and subscription fee for a daily newspaper to
          the Employee's home are paid by the Company.

Section 12  SOCIAL SECURITY INCOME AND LOCAL TAXES

          The Employee will pay tax and social security contributions in
          accordance with local regulations in each country and the Company will
          withhold the necessary deductions herefor.

Section 13  TERMINATION OF CONTRACT

          This contract may be terminated by either party giving to the other
          six months' notice in writing. The Company reserves the right to
          remove the Employee from his position during the time of notice or
          part of it. During the time of notice the Employee is entitled to the
          conditions of this agreement with the exception of bonus.

          Should the contract be terminated by the Employer, the Employee shall
          receive in addition to time of notice a severance pay amounting to
          twelve months' salary as per date the day before giving the notice.
          The severance pay shall, unless otherwise agreed upon, be paid every
          month starting the first month after the expiry of the contract
          period. An additional six months severance pay will be paid when the
          Employee has reached the age of 55 years.

          The Company will furthermore pay expenses to cover removal
          transportation and insurance of personal belongings to country of
          choice within Europe.

          Any statutory severance pay/indemnities which may be granted the
          Employee shall be deducted from the severance pay stated in this
          contract.

          The Company reserves the right to terminate this contract at any time,
          without prior notice, in the event of misconduct by the Employee,
          including subordination, use of physical violence, unjustified absence
          or tardiness, refusal to carry out duties properly assigned to him,
          disclosure or confidential information relating to the Company or
          giving false or misleading information to the Company either before or
          after the date of this agreement.

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SECTION 14 CONFIDENTIALITY

          The Employee shall not at any time other than in the course of his
          duties without the previous consent in writing of the Company divulge
          or make known to anyone any secrets or any technical, commercial,
          financial or other information of a confidential nature unless such
          information is already in the public domain relating to the business
          or customers of the Group so as to the extent that all such
          information has become a matter of public record. All papers and
          documents used by the Employee in the course of his employment are and
          will remain the property of the Company and will be delivered up to
          the Company on the termination of the Employee's agreement with the
          Company or any of its subsidiaries. This clause operates independently
          of the existence of this Agreement.

SECTION 15 PATENT, SECRET PROCESSES AND IMPROVEMENTS

          Any discovery or Inventory secret process or improvement in procedure
          made or discovered by the Employee while in the service of the Company
          whether before or after the date of this Agreement in any way
          affecting or relating to the business of the Company or of any
          subsidiary company or capable of being used or adapted for use therein
          or in connection therewith shall forthwith be disclosed to the Company
          and should belong to and be the absolute property of the Company.

SECTION 16 RESTRICTIVE COVENANT

          The Employee hereby agrees during his employment not to solicit
          business from any person, firm or company who at any time has been a
          customer of the company or done business with or attempt to persuade
          away from the Company any person who has been employed by the Company.

SECTION 17 OTHER EMPLOYMENT CONDITION

          As to the rest the general employment conditions of Pharmacia Biotech
          Europe GmbH will apply.
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SECTION 18 JURISDICTION

          Any dispute about the agreement shall be submitted to a Swedish
          Arbitration Court if the parties cannot come to a consensus as to the
          interpretation of the conditions. The costs of the arbitration
          proceedings shall be defrayed by the Company provided that the
          Employee has not unduly instigated the arbitration procedure. In such
          case, the arbitrators will determine the distribution of arbitration
          costs.


SECTION 19 OTHER CLAUSE

          This contract supersedes all earlier written or oral agreements
          between the Employee and different entities within Pharmacia Biotech.


SECTION 20 COUNTERPARTS

          The agreement has been drawn up in duplicate, of which the parties
          have taken one copy each.


Uppsaala,


     Signed   /s/ Arne Forsell              Signed  /s/ Lars Eric Utterman
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              Arne Forsell                          Lars Eric Utterman
              Chairman of the Board


     Date:    April 12, 1994                Date:   April 12, 1994
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