Exhibit (D)(vi)

                THIS ESCROW AGREEMENT dated as of April 30, 2004



A M O N G:



                LPBP INC.,
                a corporation incorporated under the laws of
                the Province of Ontario

                (hereinafter called "LPBP")

A N D



                HEMOSOL CORP.,
                a corporation incorporated under the laws of
                the Province of Ontario

                (hereinafter called "HEMOSOL")

A N D



                COMPUTERSHARE TRUST COMPANY OF CANADA,
                a corporation incorporated under the laws of
                [*]

                (hereinafter called the "ESCROW AGENT")

RECITALS:

WHEREAS:

A.    LPBP (formerly Hemosol Inc.) and MDS Inc. entered into an arrangement
      agreement (the "ARRANGEMENT AGREEMENT") dated as of February 11, 2004
      which set out the terms of an arrangement (the "ARRANGEMENT") involving
      LPBP, its securityholders and MDS Inc.;

B.    pursuant to the Arrangement Agreement, LPBP and MDS Inc. agreed that the
      Escrowed Redemption Amount (as defined herein) paid to Hemosol under the
      terms of the Arrangement would be placed into escrow substantially in
      accordance with the terms and conditions set out in Exhibit 4 to the
      Arrangement Agreement;




C.    LPBP and Hemosol have requested that the Escrow Agent enter into this
      Agreement and hold, for and on behalf of LPBP and Hemosol, the Escrowed
      Redemption Amount in accordance with the terms set out herein;

D.    the parties acknowledge that these recitals are made by LPBP and Hemosol
      and not by the Escrow Agent;

NOW THEREFORE, in consideration of the premises and the respective covenants of
the parties and for other good and valuable consideration, receipt of which is
hereby acknowledged by each party hereto, the parties agree as follows:

                                   ARTICLE 1
                                 INTERPRETATION

1.1      Definitions

In this Agreement, unless there is something in the subject matter or context
inconsistent therewith:

      (a)   "AGREEMENT" means this escrow agreement, including all schedules
            attached hereto as the same may be amended or supplemented in
            accordance with the terms hereof;

      (b)   "ANNIVERSARY DATE" means April 30, 2005;

      (c)   "AUTHORIZED PERSON" has the meaning set out in Subsection 3.2(a) of
            this Agreement;

      (d)   "BUSINESS DAY" means any day on which banks in the City of Toronto
            are open for business other than a Saturday, a Sunday or a statutory
            holiday;

      (e)   "CLAIM NOTICE" means a notice of LPBP of one or more claims under
            the Indemnity Agreement;

      (f)   "CLAIM PERIOD" means the period beginning on the date hereof and
            ending on the Anniversary Date;

      (g)   "EARNINGS" means any income (including interest or gains) earned on
            or in respect of investing the Escrowed Funds;

      (h)   "EFFECTIVE DATE" means the date hereof;

      (i)   "ESCROW PERIOD" means the period from the completion of the closing
            of the Arrangement on the Effective Date to completion of the
            release from escrow of all Escrowed Funds;


                                      -2-


      (j)   "ESCROWED FUNDS" at any time means the sum of (i) the Escrowed
            Redemption Amount plus (ii) any Earnings minus (iii) any Losses
            derived from time to time from holding the Escrowed Redemption
            Amount or from holding Earnings;

      (k)   "ESCROWED REDEMPTION AMOUNT" means the $1,000,000 cash amount
            delivered by LPBP on behalf of Hemosol to the Escrow Agent on the
            Effective Date in accordance with the terms and conditions of this
            Agreement;

      (l)   "INCLUDES" and "INCLUDING" shall be deemed to be followed by the
            phrase "without limitation";

      (m)   "INDEMNITY AGREEMENT" means the indemnity agreement dated the date
            hereof between LPBP and Hemosol LP;

      (n)   "INVESTMENT DIRECTION" has the meaning set out in Subsection 2.3(a)
            of this Agreement;

      (o)   "LOSSES" means any losses suffered from investing the Escrowed
            Funds;

      (p)   "OBJECTION NOTICE" has the meaning set out in Section 2.9 of this
            Agreement;

      (q)   "PERSON" includes any individual, partnership, limited partnership,
            syndicate, sole proprietorship, company or corporation, with or
            without share capital, unincorporated association, trust, trustee,
            executor, administrator, or other legal personal representative,
            regulatory body or agency, government or governmental agency,
            authority or entity, however designated or constituted;

      (r)   "QUALIFIED INVESTMENTS" means securities issued or guaranteed by the
            Government of Canada or a Canadian provincial government, or
            obligations of a Canadian chartered bank maturing not more than one
            year from the date of investment; and

      (s)   "RELEASE CERTIFICATE" means the certificate jointly executed by LPBP
            and Hemosol in the form attached hereto as Schedule "A" to be
            delivered by LPBP and Hemosol to the Escrow Agent confirming that
            all or part of the Escrowed Funds shall be released.

1.2      Words Importing the Singular

Words importing the singular include the plural and vice versa and words
importing gender include all genders.

1.3      Interpretation not Affected by Headings

The division of this Agreement into Articles, Sections, Subsections and
paragraphs and the insertion of headings are for convenience of reference only
and shall not affect the construction or interpretation of this Agreement.


                                      -3-


1.4      Time of the Essence

Time shall be of the essence in all respects in this Agreement.

1.5      Governing Law

This Agreement shall be construed and enforced in accordance with the laws of
the Province of Ontario and the federal laws of Canada applicable therein and
shall be treated in all respects as an Ontario contract.

1.6      Currency

Unless otherwise stated, all dollar amounts referred to in this Agreement are in
Canadian dollars.

1.7      Business Day

If any payment is required to be made or other action is required to be taken
pursuant to this Agreement on a day which is not a Business Day, then such
payment or action shall be made or taken on the next Business Day following such
day.

                                   ARTICLE 2
                                 ESCROWED FUNDS

2.1      Appointment of Escrow Agent

LPBP and Hemosol hereby appoint the Escrow Agent to act as escrow agent on the
terms and conditions set forth in this Agreement and the Escrow Agent hereby
accepts such appointment on such terms and conditions.

2.2      Escrowed Funds and Distribution Amounts

      (a)   On the Effective Date and immediately following receipt by the
            Escrow Agent of the Escrowed Redemption Amount, the Escrowed
            Redemption Amount shall be held in escrow by the Escrow Agent, on
            behalf of LPBP and Hemosol.

      (b)   The Escrow Agent shall accept and hold the Escrowed Redemption
            Amount in escrow for and on behalf of LPBP and Hemosol pursuant
            hereto and shall disburse and deal with the Escrowed Funds in
            compliance with Article 2 hereof. Except as provided in Section
            2.3(a) hereof, the Escrow Agent shall at all times during the Escrow
            Period keep the Escrowed Funds in an interest bearing segregated
            trust account, all on the terms and subject to the conditions of
            this Agreement.

2.3      Qualified Investments

      (a)   Upon receipt of a duly executed direction from both LPBP and Hemosol
            (the "INVESTMENT DIRECTION"), the Escrow Agent shall invest the
            Escrowed Funds in Qualified Investments, or as otherwise directed by
            LPBP and Hemosol, in its


                                      -4-


            name in accordance with such direction. Any Investment Direction
            shall be in writing and shall be provided to the Escrow Agent no
            later than 9:00 a.m. (Toronto time) on the day on which the
            Qualified Investment is to be made. Any Investment Direction
            received by the Escrow Agent after 9:00 a.m. (Toronto time) or
            received on a non-Business Day, shall be deemed to have been given
            prior to 9:00 a.m. (Toronto time) the next Business Day.

      (b)   LPBP and Hemosol hereby direct the Escrow Agent to deposit the
            Escrowed Redemption Amount in an interest bearing deposit account
            upon receipt thereof. The Escrow Agent shall maintain the Escrowed
            Funds in such account until one or more Investment Directions are
            received or the funds are required to be released pursuant to this
            Agreement.

2.4      Release of Escrowed Funds

      (a)   If LPBP has made any claims under the Indemnity Agreement in respect
            of matters arising during the Claim Period which have not been
            satisfied in full pursuant to the Indemnity Agreement on or before
            the date of a Claim Notice (as defined below), LPBP shall, on or
            before the 15th Business Day following the expiry of the Claim
            Period, deliver a notice to Hemosol and the Escrow Agent
            substantially in the form of Schedule "B" hereto (a "CLAIM NOTICE")
            which notice shall set forth the particulars of each claim made by
            LPBP under the Indemnity Agreement which remains unsatisfied
            including the estimated amount of the claim and the facts giving
            rise to such claims. If, upon the expiry of such 15 Business Day
            period, LPBP has not delivered a Claim Notice as provided herein or
            has delivered a Claim Notice in respect of only part of the Escrowed
            Redemption Amount, the Escrow Agent shall pay the Escrowed
            Redemption Amount which is not the subject of a Claim Notice plus
            any Earnings thereon or less any Losses thereon to Hemosol within
            one Business Day of such expiry. If, at any time after the delivery
            of a Claim Notice, any claim referred to therein has been satisfied
            in whole or in part under the Indemnity Agreement, and, following
            such satisfaction, the total amount of all unsatisfied claims under
            all Claims Notices (collectively, the "UNSATISFIED CLAIMS") is less
            than the Escrowed Redemption Amount, LPBP and Hemosol shall execute
            a Release Certificate to release that portion of the Escrowed
            Redemption Amount equal to the difference between the Unsatisfied
            Claims and the Escrowed Redemption Amount, plus Earnings thereon and
            less Losses thereon, to Hemosol within one Business Day of receipt
            of such Release Certificate.

      (b)   Upon receipt by Hemosol of a Claim Notice, Hemosol shall, on or
            before the 20th Business Day following the expiry of the Claim
            Period, deliver an objection notice (the "OBJECTION NOTICE") to LPBP
            and the Escrow Agent substantially in the form of Schedule "C"
            hereto if it objects to any or all of the claims made by LPBP in the
            Claim Notice, which shall set forth the particulars of the objection
            and the amount of the Escrowed Funds subject to the objection. If,
            upon the expiry of such 20 Business Day period, Hemosol does not
            deliver an Objection Notice as provided herein, or has delivered an
            Objection Notice in respect of only


                                      -5-


            part of the Escrowed Redemption Amount, the Escrow Agent shall pay
            the Escrowed Funds specified in the Claim Notice in respect of which
            no Objection Notice is given, plus any Earnings thereon or less any
            Losses in respect thereof to LPBP within one Business Day of receipt
            of such Objection Notice or the expiry of the period in Subsection
            2.4(c).

      (c)   If a Claim Notice is delivered by LPBP and an Objection Notice is
            made in respect of any of the Claims specified in the Claim Notice,
            the Escrow Agent shall retain the balance of the Escrowed Funds
            pending receipt of (i) a Release Certificate in respect of some or
            all of the Escrowed Funds, or (ii) a certified copy of a final
            non-appealable order of a court ("FINAL COURT ORDER") having
            jurisdiction regarding the claims in dispute. The Escrow Agent shall
            pay the Escrowed Funds in respect of (i) above in accordance with
            the instructions in the Release Certificate. The Escrow Agent shall
            pay the Escrowed Funds in respect of (ii) above in accordance with
            the Final Court Order.

2.5      Release of Escrowed Funds upon Receipt of Release Certificate

Upon receipt of a Release Certificate in respect of all or part of the Escrowed
Redemption Amount (the "RELEASED PORTION"), the Escrow Agent shall pay from the
Escrowed Funds as directed in the Release Certificate an amount equal to the
Released Portion plus the Earnings thereon less any Losses thereon.

2.6      Early Termination of any Investment of the Escrowed Funds

In making any payment pursuant to this Agreement, the Escrow Agent has the
authority to liquidate any investments of Escrowed Funds in order to make
payments contemplated under this Article 2 and shall not be liable for any
diminution of value, through loss of opportunity costs or breakage fees, of the
Escrowed Funds for early termination of any investment of the Escrowed Funds
necessary to enable the Escrow Agent to make such payment.

2.7      Method of Disbursement and Delivery

      (a)   All disbursements of money by the Escrow Agent made in accordance
            with the provisions of this Agreement shall be made by certified
            cheque drawn upon the account of the Escrow Agent at a Canadian
            chartered bank and made payable to or to the order of the persons
            entitled to disbursement and in the correct amount.

      (b)   If the Escrow Agent delivers any such cheque as required and in
            accordance with this Article 2 or any other provision of this
            Agreement, the Escrow Agent shall have no further obligation or
            liability for the amount represented thereby, provided that in the
            event of the non-receipt of such cheque by the payee, or the loss or
            destruction thereof, the Escrow Agent, upon being furnished with:
            (i) evidence satisfactory to the Escrow Agent in its sole discretion
            of such non-receipt, loss or destruction; and (ii) funding and
            indemnity satisfactory to it in its sole discretion, the Escrow
            Agent shall issue to such payee a replacement cheque for the amount
            of such cheque.


                                      -6-


                                   ARTICLE 3
                                THE ESCROW AGENT

3.1      Disbursement

The Escrow Agent will disburse monies according to this Agreement only to the
extent that monies have been deposited with the Escrow Agent pursuant to this
Agreement.

3.2      Authorized Person

      (a)   Each of LPBP and Hemosol shall file with the Escrow Agent on the
            Effective Date a certificate of incumbency setting forth the name of
            an individual or individuals authorized to give instructions,
            directions or statutory declarations to the Escrow Agent on their
            behalf (each an "AUTHORIZED PERSON"), together with a specimen
            signature of such person or persons. Each of LPBP and Hemosol may
            file further certificates of incumbency from time to time and the
            Escrow Agent shall rely on the latest certificate of incumbency
            filed with it.

      (b)   The Escrow Agent shall be fully protected in acting upon any
            instrument, certificate or paper believed by it in good faith and
            without negligence to be genuine and to be signed by an Authorized
            Person.

3.3      Duties of Escrow Agent

      (a)   The duties and obligations of the Escrow Agent are as set out in
            this Agreement. The Escrow Agent shall retain the right not to act
            and shall not be held liable for refusing to act unless it has
            received clear and reasonable instructions.

      (b)   The Escrow Agent shall not be liable for any error in judgment or
            for any act done or step taken or omitted by it in good faith or for
            any mistake, in fact or law, or for anything which it may do or
            refrain from doing in connection therewith, except arising out of
            its own negligence or wilful misconduct.

3.4      Indemnity

LPBP and Hemosol (in addition to any right of indemnity by law given to the
Escrow Agent) shall indemnify the Escrow Agent, each as to 50%, against all
taxes, liabilities, damages, losses, actions, proceedings, reasonable legal and
professional fees, costs, claims and demands in respect of any matter or thing
done or omitted by it in any way relating to this Agreement, other than taxes,
liabilities, damages, losses, actions, proceedings, fees, costs, claims or
demands arising from the negligence or wilful misconduct on the part of the
Escrow Agent. This Section 3.4 shall not merge on the lapse or termination of
this Agreement but shall survive and continue for the benefit of the Escrow
Agent. The Escrow Agent acknowledges that it shall have no right to seek
indemnity from any Party who has satisfied its obligations under this Section
3.4.


                                      -7-


3.5      Dispute

Notwithstanding any other provision of this Agreement, in the event of a dispute
between LPBP and Hemosol in respect of which the Escrow Agent has been notified
by any party hereto prior to the release of the Escrowed Funds or any portion
thereof, as applicable, regarding the Escrowed Funds, or any portion thereof, or
any provisions of this Agreement, then:

      (a)   the Escrow Agent shall not release the Escrowed Funds or any part
            thereof except under order or direction of any court or a Release
            Certificate, and it shall sustain no liability for its failure to
            release the Escrowed Funds or any part thereof pending such court
            order or direction or a Release Certificate; and

      (b)   the Escrow Agent may, in its sole and absolute discretion, deposit
            the Escrowed Funds or any portion thereof with the clerk of a court
            of competent jurisdiction in Ontario, and interplead this Agreement
            and all other relevant documents and monies and upon so depositing
            such documents and monies and filing its interpleader it shall be
            relieved of all liability under the terms hereof with respect to the
            part of the Escrowed Funds (except for such liability as may have
            arisen with respect to acts or omissions of the Escrow Agent prior
            to such date of deposit).

3.6      Counsel

The Escrow Agent may employ such counsel and advisers as it may reasonably
require for the purpose of discharging its duties under this Agreement and the
Escrow Agent may act and shall be fully protected in acting in good faith on the
opinion or advice of or information obtained from any such counsel or adviser in
relation to any matter arising under this Agreement. All reasonable costs and
expenses incurred by the Escrow Agent in respect of such counsel and advisors
(including legal fees) shall be paid by LPBP and Hemosol.

3.7      Fees and Expenses of Escrow Agent

The Escrow Agent may from time to time render accounts for its services
performed in connection with the performance of its duties under this Agreement
in accordance with the schedule of fees dated the date hereof and executed by
the parties hereto. In addition, the Escrow Agent shall be entitled to be
reimbursed for reasonable out-of-pocket expenses incurred by the Escrow Agent in
the performance of its duties under this Agreement. All such fees, costs and
expenses shall be shared equally by LPBP and Hemosol.

3.8      Interest and Taxes

LPBP and Hemosol shall be responsible for and shall pay all taxes on any
Earnings earned on the Escrowed Funds. Following the end of each calendar year
during which this Agreement is in effect, the Escrow Agent shall forward to LPBP
and Hemosol a Form T-5 pursuant to the Income Tax Act (Canada) in respect of any
Earnings earned on the Escrowed Funds upon receipt thereof from the bank in
which the Escrowed Funds are placed.


                                      -8-


3.9      Attachment

In the event the Escrow Agent is served any writ, order or decree which purports
to:

      (a)   attach, garnishee or levy upon the Escrowed Funds;

      (b)   stay or enjoin the delivery of the Escrowed Funds; or

      (c)   affect the Escrowed Funds in any way;

then the Escrow Agent may, in its sole and absolute discretion, deposit the
Escrowed Funds or any portion thereof with the clerk of a court of competent
jurisdiction in Ontario, and this Agreement and upon so depositing such
documents and monies and filing its interpleader it shall be relieved of all
liability under the terms hereof with respect to the part of the Escrowed Funds
deposited (except for such liability as may have arisen with respect to acts or
omissions of the Escrow Agent prior to such date of deposit).

3.10     Miscellaneous

In the event that the Escrow Agent shall hold any amount of interest or other
distributable amount which is unclaimed or which cannot be paid for any reason
other than the negligence or wilful misconduct of the Escrow Agent, the Escrow
Agent shall be under no obligation to invest or reinvest the same but shall only
be obligated to hold the same on behalf of the person or persons entitled
thereto in a current or other non-interest bearing account pending payment to
the person or persons entitled thereto. The Escrow Agent shall, as and when
required by law, and may at any time prior to such required time, pay all or
part of such interest or other distributable amount so held to the Public
Trustee of Ontario (or other appropriate official or agency), whose receipt
shall be good discharge and release of the Escrow Agent for such amounts.

3.11     Replacement of Escrow Agent

      (a)   The Escrow Agent may resign and be discharged from all further
            duties under this Agreement by giving ninety (90) days' notice of
            its resignation in writing to each of LPBP and Hemosol.

      (b)   LPBP and Hemosol may at any time on ten (10) Business Days' joint
            written notice remove the Escrow Agent and appoint a new escrow
            agent.

      (c)   In the event of the Escrow Agent resigning or being removed or being
            dissolved, becoming bankrupt, going into liquidation or otherwise
            becoming incapable of acting under this Agreement, LPBP and Hemosol
            shall forthwith jointly appoint a new Escrow Agent and any Escrow
            Agent so appointed shall be subject to resignation or removal in the
            same manner as was the original Escrow Agent.

      (d)   In the event that a successor Escrow Agent has not been appointed at
            the time the Escrow Agent is removed or the time the notice period
            for the Escrow Agent's resignation expires, as the case may be, the
            Escrow Agent shall deposit the Escrowed Funds with the clerk of a
            court of competent jurisdiction in Ontario and


                                      -9-


            shall interplead all of the parties to this Agreement. Upon so
            depositing the Escrowed Funds and filing its pleadings, this
            Agreement shall terminate as to the Escrow Agent.

      (e)   Upon receipt of joint written notice from LPBP and Hemosol in the
            case of the appointment of a new Escrow Agent under this Agreement,
            the predecessor Escrow Agent shall transfer the Escrowed Funds to
            the new Escrow Agent duly appointed and shall thereupon be released
            from further duties under this Agreement.

      (f)   Upon its appointment, the new Escrow Agent shall be vested with the
            same powers, rights, duties and responsibilities as if it had been
            originally named in this Agreement as Escrow Agent, without any
            further assurance, conveyance, act or deed and there shall be
            immediately executed, at the expense of LPBP and Hemosol (each
            bearing such expense equally), all such conveyances or other
            instruments as may, in the opinion of counsel to the new Escrow
            Agent and the Parties, be necessary or advisable for the purpose of
            assuring to the Escrow Agent a full estate in the premises.

                                    ARTICLE 4
                                     GENERAL

4.1      Notice to the Parties

      (a)   Any notice to be given hereunder including, without limitation, a
            Release Certificate, a Claim Notice and an Objection Notice shall be
            deemed to be validly given if delivered or if delivered by personal
            delivery or if transmitted by facsimile (with confirmation receipt):

            (i)   if to LPBP, to:

                        LPBP Inc.
                        100 International Boulevard
                        Toronto, Ontario, Canada  M9W 6J6

                        Attention:        John Anderson, President
                        Facsimile:        [*]

                  with a copy to its counsel:

                        Fasken Martineau DuMoulin LLP
                        66 Wellington Street West
                        Suite 4200
                        Toronto Dominion Bank Tower
                        P.O. Box 20, Toronto-Dominion Centre
                        Toronto, Ontario, Canada  M5K 1N6

                        Attention:        Richard Steinberg

                                      -10-


                        Facsimile:        (416) 364-7813

            (ii)  if to Hemosol, to:

                        Hemosol Corp.
                        2585 Meadowpine Blvd.
                        Toronto, Ontario, Canada  L5N 8H9

                        Attention:        Lee Hartwell
                        Facsimile:        (905) 286-0021

                  with a copy to its counsel:

                        Davies Ward Phillips & Vineberg LLP
                        1 First Canadian Place
                        44th Floor
                        Toronto, Ontario, Canada  M5X 1B1

                        Attention:        Arthur Shiff
                        Facsimile:        (416) 863-0871

            (iii) if to the Escrow Agent, to:

                        Computershare Trust Company of Canada
                        100 University Avenue, 9th Floor
                        Toronto, Ontario, Canada  M5J 2Y1

                        Attention:        [*]
                        Facsimile:        [*]

            and any notice given in accordance with the foregoing, if delivered
            by personal delivery, shall be deemed to have been received on the
            date of delivery if that day is a Business Day, if such notice is
            actually received prior to 5:00 p.m. (Toronto time) failing which it
            shall be deemed to be received on the next Business Day or, if
            transmitted by facsimile, it shall be deemed to have been received
            on the date of the transmission (with confirmation receipt) if such
            transmission is received prior to 5:00 p.m. (Toronto time) on a
            Business Day, failing which, it shall be deemed to have been
            received on the next Business Day following the transmission (with
            confirmation receipt).

4.2      Satisfaction and Discharge of Agreement

On the date on which all Escrowed Funds shall have been delivered in accordance
with this Agreement and upon payment to the Escrow Agent by LPBP and Hemosol of
the fees and other remuneration payable to the Escrow Agent, with the exception
of Sections 3.4 and 3.7, this Agreement shall terminate and cease to be of any
force or effect.


                                      -11-


4.3      Further Assurances

A party will at any time and from time to time, upon the request of another
party, execute and deliver such further documents and do such further acts and
things as may reasonably be requested in order to evidence, carry out and give
full effect to the terms, conditions, intent and meaning of this Agreement.

4.4      No Waiver

No failure or delay on the part either of LPBP and Hemosol in exercising any
right, power or remedy provided herein may be, or may be deemed to be, a waiver
thereof; and no single or partial exercise of any right, power or remedy shall
preclude any other or further exercise of such right, power or remedy or any
other right, power or remedy.

4.5      Amendments

This Agreement may be amended or cancelled by and upon written notice to the
Escrow Agent at any time given jointly by LPBP and Hemosol but the duties and
responsibilities and indemnification (including without limitation the fees and
expenses of the Escrow Agent) of the Escrow Agent shall not be affected by any
such amendment without its written consent.

4.6      Successors

This Agreement shall be binding upon and shall enure to the benefit of the
parties hereto and their respective successors, and permitted assigns, as the
case may be.

4.7      Counterparts and Formal Date

This Agreement may be simultaneously executed in several counterparts, each of
which when so executed shall be deemed to be an original and such counterparts
together shall constitute one and the same instrument and notwithstanding their
date of execution shall be deemed to bear the date set out at the top of the
first page of this Agreement.

              THE NEXT PAGE OF THIS AGREEMENT IS THE SIGNATURE PAGE


                                      -12-




IN WITNESS WHEREOF the parties hereto have executed this Agreement under seal
and under the hands of their proper officers in that behalf.

                                      LPBP INC.

                                      ------------------------------------------
                                      By:
                                      Title:

                                      ------------------------------------------
                                      By:
                                      Title:


                                      HEMOSOL CORP.

                                      ------------------------------------------
                                      By:
                                      Title:


                                      COMPUTERSHARE TRUST COMPANY OF CANADA

                                      ------------------------------------------
                                      By:
                                      Title:

                                      ------------------------------------------
                                      By:
                                      Title:


                                      -13-




                                  SCHEDULE "A"

                               RELEASE CERTIFICATE

TO:      COMPUTERSHARE TRUST COMPANY OF CANADA (THE "ESCROW AGENT")

FROM:    LPBP INC. ("LPBP") AND HEMOSOL CORP. ("HEMOSOL")

RE:      RELEASE OF ESCROWED FUNDS

Terms that are capitalized and not defined herein shall have the meanings
attributed thereto in the escrow agreement between LPBP, Hemosol and the Escrow
Agent dated as of April 30, 2004 (the "Escrow Agreement").

You are hereby irrevocably authorized and directed to release $______ of the
Escrowed Redemption Amount plus Earnings thereon or less Losses in respect
thereof to ____________ in accordance with the terms and conditions of the
Escrow Agreement and this shall be your good, sufficient and irrevocable
authority for so doing.

IN WITNESS WHEREOF, the undersigned have provided this notice on the ______ day
of _____________________, 20__.

                                      LPBP INC.

                                      ------------------------------------------
                                      By:
                                      Title:

                                      ------------------------------------------
                                      By:
                                      Title:


                                      HEMOSOL CORP.

                                      ------------------------------------------
                                      By:
                                      Title:






                                  SCHEDULE "B"

                                  CLAIM NOTICE

TO:      COMPUTERSHARE TRUST COMPANY OF CANADA (THE "ESCROW AGENT")

AND TO:  HEMOSOL CORP. ("HEMOSOL")

FROM:    LPBP INC. ("LPBP")

RE:      CLAIMS UNDER INDEMNITY AGREEMENT

Terms that are capitalized and not defined herein shall have the meanings
attributed thereto in the escrow agreement between LPBP, Hemosol and the Escrow
Agent dated as of April 30, 2004 (the "Escrow Agreement").

Pursuant to subsection 2.4(a) of the Escrow Agreement, the undersigned hereby
provides notice of the following claims made under the Indemnity Agreement which
at the date hereof have not been satisfied in full pursuant to the terms of the
Indemnity Agreement:

[*]

IN WITNESS WHEREOF, the undersigned has provided this notice on the ______ day
of _____________________, 20__.

                                      LPBP INC.

                                      ------------------------------------------
                                      By:
                                      Title:

                                      ------------------------------------------
                                      By:
                                      Title:








                                  SCHEDULE "C"

                                OBJECTION NOTICE

TO:      COMPUTERSHARE TRUST COMPANY OF CANADA (THE "ESCROW AGENT")

AND TO:  LPBP INC. ("LPBP")

FROM:    HEMOSOL CORP. ("HEMOSOL")

RE:      OBJECTION TO CLAIM

Terms that are capitalized and not defined herein shall have the meanings
attributed thereto in the escrow agreement between LPBP, Hemosol and the Escrow
Agent dated as of April 30, 2004 (the "Escrow Agreement").

Pursuant to subsection 2.4(b) of the Escrow Agreement, the undersigned hereby
objects to the following claims made by LPBP in the Claim Notice dated [*]:

[*]

IN WITNESS WHEREOF, the undersigned has provided this notice on the ______ day
of _____________________, 20__.

                                      HEMOSOL CORP.

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                                      By:
                                      Title: