SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE 13E-3

                        RULE 13e-3 TRANSACTION STATEMENT
           UNDER SECTION 13(e) OF THE SECURITIES EXCHANGE ACT OF 1934
                                (AMENDMENT NO. 2)

                                  HEMOSOL INC.
    ------------------------------------------------------------------------
                              (Name of the Issuer)

                                  HEMOSOL INC.
                                    MDS INC.
                          MDS LABORATORY SERVICES INC.
    ------------------------------------------------------------------------
                       (Names of Persons Filing Statement)

                                  COMMON SHARES
    ------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    42369K102
    ------------------------------------------------------------------------
                      (CUSIP Number of Class of Securities)


                                                    
     LEE D. HARTWELL            PETER E. BRENT                 BRADLEY G. LEGGE
      HEMOSOL INC.                 MDS INC.               MDS LABORATORY SERVICES INC.
2585 MEADOWPINE BOULEVARD   100 INTERNATIONAL BOULEVARD   100 INTERNATIONAL BOULEVARD
  MISSISSAUGA, ONTARIO         TORONTO, ONTARIO                 TORONTO, ONTARIO
     CANADA L5N 8H9             CANADA M9W 6J6                 CANADA M9W 6J6
      905-286-6200               416-675-6777                     416-675-6777

    ------------------------------------------------------------------------
          (Name, Address and Telephone Numbers of Person Authorized to
  Receive Notices and Communications on Behalf of the Persons Filing Statement)

                           Copy of communications to:

        JEFFREY NADLER, ESQ.                   CHRISTOPHER W. MORGAN, ESQ.
     WEIL, GOTSHAL & MANGES LLP         SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP
          767 FIFTH AVENUE                     222 BAY STREET, SUITE 1750
      NEW YORK, NEW YORK 10153                     TORONTO, ONTARIO
            212-310-8000                            CANADA M5K 1J5
                                                     416-777-4700

This Statement is filed in connection with:

a. / / The filing of solicitation materials or an information statement subject
to Regulation 14A, Regulation 14C or Rule 13e-3(c) under the Securities Exchange
Act of 1934.

b. / / The filing of a registration statement under the Securities Act of 1933.

c. / / A tender offer.

d. /X/ None of the above.

Check the following box if the soliciting material or information statement
referred to in checking box (a) are preliminary copies: / /

Check the following box if the filing is a final amendment reporting the results
of the transaction: / /

                            CALCULATION OF FILING FEE

       Transaction Valuation*                   Amount of Filing Fee**
           $3,478,219.04                              $696.00

* Estimated solely for purposes of computing the filing fee. The transaction
valuation was based on the product of (i) the 7% equity interest in Hemosol
being acquired by MDS pursuant to the Arrangement described herein (equal to
3,930,191 shares based on 56,145,582 Hemosol common shares outstanding as of
March 10, 2004), and (ii) $0.885, the average of the high and low prices
reported for Hemosol common shares on the Nasdaq National Market on March 17,
2004.

** The amount of the filing fee, calculated in accordance with Rule 0-11(b) of
the Securities Exchange Act of 1934, equals 1/50 of 1% of the transaction
valuation.

/X/ Check box if any part of the fee is offset as provided by Exchange Act Rule
0-11(a)(2) and identify the filing with which the offsetting fee was previously
paid. Identify the previous filing by registration statement number, or the Form
or Schedule and the date of its filing.


                                 
Amount Previously Paid: $696.00     Form or Registration No.: Rule 13E-3 Transaction Statement on Schedule 13E-3
Filing Party: Hemosol Inc., MDS Inc. and MDS Laboratory Services Inc.                 Date Filed: March 19, 2004


            This Amendment No. 2 ("Amendment No. 2") is being filed by (i)
Hemosol Inc. ("Hemosol"), a corporation existing under the Business Corporations
Act (Ontario), as amended (the "OBCA"), (ii) MDS Inc. ("MDS"), a corporation
existing under the OBCA, and (iii) MDS Laboratory Services Inc. ("MDS Subco"
and, together with Hemosol and MDS, the "Filing Persons"), a corporation
existing under the OBCA and a wholly-owned subsidiary of MDS, and amends the
Rule 13e-3 Transaction Statement on Schedule 13E-3 (as so amended by Amendment
No. 1 and this Amendment No. 2, the "Transaction Statement") filed pursuant to
Section 13(e) of the Securities Exchange Act of 1934, as amended, by the Filing
Persons on March 19, 2004 and amended by Amendment No. 1 on April 5, 2004.

            The Transaction Statement relates to a proposed arrangement
involving Hemosol, its securityholders and MDS, upon the terms and conditions
provided for in the Arrangement Agreement, attached as Exhibit (d)(i) to the
Rule 13e-3 Transaction Statement on Schedule 13E-3 filed by the Filing Persons
on March 19, 2004.


                                        2

ITEM 16. EXHIBITS.

Regulation M-A
Item 1016

(a)(2)(a)       Press Release of Hemosol, dated February 12, 2004*

(a)(2)(b)       Press Release of MDS, dated February 12, 2004*

(a)(3)(i)       Notice of Annual and Special Meeting and Management Information
                Circular of Hemosol Inc., dated March 10, 2004*

(a)(3)(ii)      Form of Proxy for Shareholders*

(a)(3)(iii)     Form of Proxy for Eligible Convertible Securityholders*

(a)(5)(i)       Audited consolidated balance sheets of Hemosol as at December
                31, 2003 and 2002 and the accompanying audited consolidated
                statements of loss, deficit and cash flows for each of the years
                in the three-year period ended December 31, 2003, including the
                notes thereto and the report of the auditors thereon*

(a)(5)(ii)      Annual Information Form of Hemosol, dated May 27, 2003*

(a)(5)(iii)     Balance Sheet of New Hemosol and the report of the auditors
                thereon (incorporated herein by reference to Annex H of the
                Notice of Annual and Special Meeting and Management Information
                Circular (Exhibit (a)(3)(i))*

(a)(5)(iv)      Pro Forma Financial Statements for New Hemosol (incorporated
                herein by reference to Annex I of the Notice of Annual and
                Special Meeting and Management Information Circular (Exhibit
                (a)(3)(i))*

(a)(5)(v)       Pro Forma Financial Statements for Labco (incorporated herein by
                reference to Annex J of the Notice of Annual and Special Meeting
                and Management Information Circular (Exhibit (a)(3)(i))*

(b)             Not applicable.

(c)(i)          Fairness Opinion by KPMG to the Independent Committee of the
                Board of Directors of Hemosol Inc., dated February 11, 2004
                (incorporated herein by reference to Annex E of the Notice of
                Annual and Special Meeting and Management Information Circular
                (Exhibit (a)(3)(i))*

(c)(ii)         Draft Materials for KPMG financial presentation to the Hemosol
                Board*

(c)(iii)        PwC Draft Report*

(d)(i)          Arrangement Agreement, dated as of February 11, 2004, between
                Hemosol and MDS (incorporated herein by reference to Annex D of
                the Notice of


                                        3

                Annual and Special Meeting and Management Information Circular
                (Exhibit (a)(3)(i))*

(d)(ii)         Form of Blood Products Contribution Agreement**

(d)(iii)        Blood Products Partnership Agreement (incorporated herein by
                reference to Exhibit 5 to Annex D of the Notice of Annual and
                Special Meeting and Management Information Circular (Exhibit
                (a)(3)(i))*

(d)(iv)         Blood Products Security Agreements***

(d)(v)          BPP Guarantee****

(d)(vi)         Form of Escrow Agreement**

(d)(vii)        Amended and Restated Stock Option Plan of Hemosol, dated
                December 7, 2000*

(d)(viii)       Hemosol Stock Option Plan Amendment*

(d)(ix)         Warrant Indenture, dated November 28, 2003, between Hemosol and
                Computershare*

(d)(x)          Labco Indemnity Agreement (incorporated herein by reference to
                Exhibit 12 to Annex D of the Notice of Annual and Special
                Meeting and Management Information Circular (Exhibit (a)(3)(i))*

(d)(xi)         Form of Labs Contribution Agreement**

(d)(xii)        Labs Management Agreement (incorporated herein by reference to
                Exhibit 8 to Annex D of the Notice of Annual and Special Meeting
                and Management Information Circular (Exhibit (a)(3)(i))*

(d)(xiii)       Labs Partnership Agreement (incorporated herein by reference to
                Exhibit 7 to Annex D of the Notice of Annual and Special Meeting
                and Management Information Circular (Exhibit (a)(3)(i))*

(d)(xiv)        Letter of Understanding between MDS and Hemosol, accepted and
                agreed to by Hemosol on October 31, 2003, as amended*

(d)(xv)         MDS Guarantee*

(d)(xvi)        MDS Indemnity Agreement (incorporated herein by reference to
                Exhibit 13 to Annex D of the Notice of Annual and Special
                Meeting and Management Information Circular (Exhibit (a)(3)(i))*

(d)(xvii)       Memorandum of Understanding between MDS and Hemosol, dated
                October 22, 2002, as amended on December 23, 2003*


                                       4

(d)(xviii)      New Hemosol MOU***

(d)(xix)        New Hemosol Stock Option Plan (incorporated herein by reference
                to Annex F of the Notice of Annual and Special Meeting and
                Management Information Circular (Exhibit (a)(3)(i))*

(d)(xx)         Warrant Certificate, dated November 22, 2002, relating to the
                Tranche A Warrants*

(d)(xxi)        Partnership Interest Transfer Agreement***

(d)(xxii)       Consent of Ernst & Young LLP*

(f)             Not applicable

(g)             Not applicable


- ----------
*     Previously filed.

**    Filed herewith.

***   To be filed by amendment.

****  Not applicable.




                                       5

                                    SIGNATURE

            After due inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated: April 19, 2004


                                   HEMOSOL INC.


                                   By: /s/ LEE D. HARTWELL
                                       -----------------------------------------
                                       Name:  Lee D. Hartwell
                                       Title: President, Chief Executive Officer
                                              and Chief Financial Officer

                                   MDS INC.


                                   By: /s/ PETER E. BRENT
                                       -----------------------------------------
                                       Name:  Peter E. Brent
                                       Title: Senior Vice President, General
                                              Counsel and Corporate Secretary

                                   MDS LABORATORY SERVICES INC.


                                   By: /s/ BRADLEY G. LEGGE
                                       -----------------------------------------
                                       Name:  Bradley G. Legge
                                       Title: Director



                                        6

                                  EXHIBIT INDEX

EXHIBIT         DESCRIPTION
- -------         -----------

(a)(2)(a)       Press Release of Hemosol, dated February 12, 2004*

(a)(2)(b)       Press Release of MDS, dated February 12, 2004*

(a)(3)(i)       Notice of Annual and Special Meeting and Management Information
                Circular of Hemosol Inc., dated March 10, 2004*

(a)(3)(ii)      Form of Proxy for Shareholders*

(a)(3)(iii)     Form of Proxy for Eligible Convertible Securityholders*

(a)(5)(i)       Audited consolidated balance sheets of Hemosol as at December
                31, 2003 and 2002 and the accompanying audited consolidated
                statements of loss, deficit and cash flows for each of the years
                in the three-year period ended December 31, 2003, including the
                notes thereto and the report of the auditors thereon*


(a)(5)(ii)      Annual Information Form of Hemosol, dated May 27, 2003*

(a)(5)(iii)     Balance Sheet of New Hemosol and the report of the auditors
                thereon (incorporated herein by reference to Annex H of the
                Notice of Annual and Special Meeting and Management Information
                Circular (Exhibit (a)(3)(i))*

(a)(5)(iv)      Pro Forma Financial Statements for New Hemosol (incorporated
                herein by reference to Annex I of the Notice of Annual and
                Special Meeting and Management Information Circular (Exhibit
                (a)(3)(i))*

(a)(5)(v)       Pro Forma Financial Statements for Labco (incorporated herein by
                reference to Annex J of the Notice of Annual and Special Meeting
                and Management Information Circular (Exhibit (a)(3)(i))*

(b)             Not applicable.

(c)(i)          Fairness Opinion by KPMG to the Independent Committee of the
                Board of Directors of Hemosol Inc., dated February 11, 2004
                (incorporated herein by reference to Annex E of the Notice of
                Annual and Special Meeting and Management Information Circular
                (Exhibit (a)(3)(i))*

(c)(ii)         Draft Materials for KPMG financial presentation to the Hemosol
                Board*

(c)(iii)        PwC Draft Report*


                                        7

(d)(i)          Arrangement Agreement, dated as of February 11, 2004, between
                Hemosol and MDS (incorporated herein by reference to Annex D of
                the Notice of Annual and Special Meeting and Management
                Information Circular (Exhibit (a)(3)(i))*

(d)(ii)         Form of Blood Products Contribution Agreement**

(d)(iii)        Blood Products Partnership Agreement (incorporated herein by
                reference to Exhibit 5 to Annex D of the Notice of Annual and
                Special Meeting and Management Information Circular (Exhibit
                (a)(3)(i))*

(d)(iv)         Blood Products Security Agreements***

(d)(v)          BPP Guarantee****

(d)(vi)         Form of Escrow Agreement**

(d)(vii)        Amended and Restated Stock Option Plan of Hemosol, dated
                December 7, 2000*

(d)(viii)       Hemosol Stock Option Plan Amendment*

(d)(ix)         Warrant Indenture, dated November 28, 2003, between Hemosol and
                Computershare*

(d)(x)          Labco Indemnity Agreement (incorporated herein by reference to
                Exhibit 12 to Annex D of the Notice of Annual and Special
                Meeting and Management Information Circular (Exhibit (a)(3)(i))*

(d)(xi)         Form of Labs Contribution Agreement**

(d)(xii)        Labs Management Agreement (incorporated herein by reference to
                Exhibit 8 to Annex D of the Notice of Annual and Special Meeting
                and Management Information Circular (Exhibit (a)(3)(i))*

(d)(xiii)       Labs Partnership Agreement (incorporated herein by reference to
                Exhibit 7 to Annex D of the Notice of Annual and Special Meeting
                and Management Information Circular (Exhibit (a)(3)(i))*

(d)(xiv)        Letter of Understanding between MDS and Hemosol, accepted and
                agreed to by Hemosol on October 31, 2003, as amended*

(d)(xv)         MDS Guarantee*

(d)(xvi)        MDS Indemnity Agreement (incorporated herein by reference to
                Exhibit 13 to Annex D of the Notice of Annual and Special
                Meeting and Management



                                        8

                Information Circular (Exhibit (a)(3)(i))*

(d)(xvii)       Memorandum of Understanding between MDS and Hemosol, dated
                October 22, 2002, as amended on December 23, 2003*

(d)(xviii)      New Hemosol MOU***

(d)(xix)        New Hemosol Stock Option Plan (incorporated herein by reference
                to Annex F of the Notice of Annual and Special Meeting and
                Management Information Circular (Exhibit (a)(3)(i))*

(d)(xx)         Warrant Certificate, dated November 22, 2002, relating to the
                Tranche A Warrants*

(d)(xxi)        Partnership Interest Transfer Agreement***

(d)(xxii)       Consent of Ernst & Young LLP*

(f)             Not applicable

(g)             Not applicable

- ----------
*     Previously filed.

**    Filed herewith.

***   To be filed by amendment.

****  Not applicable.



                                        9