1. From the Department of Internal Medicine III (S.B., R.P.), the Institute of Medical Statistics and Computational Biology (W.M., J.F., M.H.), and Cardiothoracic Surgery (T. Wahlers), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, the Department of Cardiothoracic Surgery (T.D.) and Cardiology (P.C.S.), Jena University Hospital, Friedrich-Schiller-University of Jena, Jena, Thoracic and Cardiovascular Surgery (J.G.) and General and Interventional...