1. From the Departments of Surgery (T.H., A.W.C.), Medicine (K.D.O.), and Pathology (M.F., C.E.A.), University of Washington, Seattle; the Department of Medicine, Washington University School of Medicine at the Jewish Hospital, St Louis, Mo (H.G.W.); and the Department of Medical Biochemistry, University of Tampere (Finland) Medical School (S.T.N.).