1. From the University of Rostock, Divisions of Cardiology and Biomedical Statistics (C.A.N., S.K., T.C.R., G.K., T.K., H.I.), Rostock, Germany; University of Duisburg-Essen (H.E.), Essen, Germany; University Heart Center Leipzig (D.S.), Leipzig, Germany; German Heart Institute Berlin (B.Z.), Berlin, Germany; the Centre Hospitalière Universitaire, Hôpital de Rangueil (H.R.), Toulouse, France; the Universitá St. Orsola Malpighi (R.F.), Bologna, Italy; Department of Cardiothoracic Surgery (M.C.),...