1. Institute of Medical Epidemiology, Biostatistics and Informatics; Martin-Luther-University Halle-Wittenberg; Halle/Saale Germany
2. Internal Medicine III; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
3. Deutsches Herzzentrum München; Department of Cardiology, Interventional Cardiology Group; München Germany
4. Institute of Medical Epidemiology, Biostatistics and Informatics; Martin Luther University Halle-Wittenberg; Halle/Saale Germany
5. Imebi; Martin Luther University Halle; Halle Germany
6. HELIOS Klinikum Wuppertal, Department of Cardiology; University of Witten-Herdecke; München Germany
7. Medical Clinic II (Kardiology, Angiology, Intensive Care Medicine); University Clinic Schleswig-Holstein, Campus Lübeck; Lubeck Germany
8. Department of Internal Medicine III; Martin-Luther-University Halle-Wittenberg; Halle/Saale Germany
9. Klinik fuer Kardiology, Pneumologie, Angiologie und Internistische Intensivmedizin; Klinikum Ludwigshafen; Ludwigshafen Germany
10. Cardiology/Intensive Care Medicine; Carl von Basedow Klinikum Merseburg; Merseburg Germany