1. From INSERM U-698 and Denis Diderot University (P.A.), Paris, France; Duke University (L.B.G.), Durham, NC; the University of Copenhagen (H.S.), Copenhagen, Denmark; the University of Texas Health Science Center (O.B.), San Antonio, Texas; Sentara Heart Hospital (R.M.Z.), Norfolk, Va; Vanderbilt University (A.C.), Nashville, Tenn; the University of Heidelberg (M.G.H.), Mannheim, Germany; the University of San Diego (J.A.Z.), San Diego, Calif; and Franklin University (K.M.A.W.), Chicago, Mich.