1. From The Cleveland Clinic Foundation (E.J.T.), Cleveland, Ohio; Rhode Island Hospital-Brown University (D.E.), Providence, RI; Duke University Medical Center (R.A.H., R.M.C., C.G., K.S., K.P., M.V.), Durham, NC; Hospital Lariboisiere (P.A.), Paris, France; Royal Melbourne Hospital (S.D.), Victoria, Australia; University of Essen (H.-C.D.), Essen, Germany; Texas Heart Institute (J.F.), Houston, Tex; Royal College of Surgeons (D.F.), Dublin, Ireland; Rosemont, Pa (J.G.); University of Alberta (A.S.),...