REPORT OF INDEPENDENT ACCOUNTANTS


To the Board of Directors and Stockholders of BioSeq, Inc.:

In our opinion, the accompanying balance sheets and the related statements of
operations, changes in stockholders' equity (deficit) and of cash flows present
fairly, in all material respects, the financial position of BioSeq, Inc. (a
development stage enterprise) at December 31, 1997 and 1996 and the results of
its operations and its cash flows for each of the two years in the period ended
December 31, 1997 and for the period from October 17, 1994 (date of inception)
to December 31, 1997, in conformity with accounting principles generally
accepted in the United States. These financial statements are the responsibility
of the Company's management; our responsibility is to express an opinion on
these financial statements based on our audits. We conducted our audits of these
statements in accordance with auditing standards generally accepted in the
United States which require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for the opinion expressed above.


/s/ PricewaterhouseCoopers, LLP

Boston, Massachusetts
July 10, 1998, except as to certain
information in the second paragraph of Note I,
for which the date is September 30, 1998.