1. From Medical University of South Carolina (M.R.G.,), Charleston, SC; Michigan State University (J.H.I.), East Lansing, Mich; MetroHealth Campus/Case Western Reserve University (O.C.), Cleveland, Ohio; University of Washington (J.E.P., G.H.B.), Seattle, Wash; Duke University (S.M., D.B.M., K.L.L.), Durham, NC; and Seattle Institute for Cardiac Research (G.H.B.), Seattle, Wash.