[1] University of Cologne,Department III for Internal Medicine
[2] University of Cologne,Institute of Medical Statistics and Computational Biology (IMSB), Faculty of Medicine and University Hospital Cologne
[3] Klinikum Idar-Oberstein,Department II for Internal Medicine
[4] Klinikum Gütersloh,Department of Cardiology and Electrophysiology
[5] University-Medicine Rostock,Department of Cardiology