1. Martin Luther University Halle-Wittenberg; Institute of Medical Epidemiology, Biostatistics and Informatics; Magdeburge Straße 8 Halle/Saale Germany 06097
2. Carl von Basedow Klinikum Merseburg; Cardiology/Intensive Care Medicine; Weisse Mauer 42 Merseburg Germany 06217
3. University of Leipzig; Heart Center; Strümpelstraße 39 Leipzig 04289 Germany
4. Martin Luther University Halle-Wittenberg; Internal Medicine III; Ernst-Grube-Strasse 49 Halle (Saale) Germany 06097