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


                                                  Arthur Andersen LLP


Boston, Massachusetts
April 9, 1999