Exhibit 23.2


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

    As independent public accountants, we hereby consent to the incorporation
by reference in this registration statement of our report dated January 29,
1999 included in LeukoSite, Inc.'s Form 10-K for the year ended December 31,
1998 and to all references to our Firm included in this registration
statement.

                                                        /s/ Arthur Andersen LLP


                                                        Arthur Andersen LLP


Boston, Massachusetts
November 2, 1999