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                                                                    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 16, 1998
included LeukoSite, Inc.'s Form 10-K for the year ended December 31, 1997 and to
all references to our firm included in this registration statement.

Boston, Massachusetts                          /s/ Arthur Andersen LLP
May 11, 1998