1. From the Department of Cardiology, St Georg Hospital, Hamburg, Germany (D.B., M.A., B.B., M.V., K.H.K.); the Department of Cardiology, University Hospital, Hannover, Germany (J.T.); the Department of Cardiology, Klinikum Ludwigshafen (K.S.); the Department of Cardiology and Angiology, University Hospital, Münster (M.B.); the Department of Mathematics and Data Processing in Medicine, University Hospital Eppendorf, Hamburg, Germany (J.B.); and the Department of Cardiology, Central Hospital, Bielefeld...