1. Department of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt am Main, Frankfurt am Main, Germany
2. German Centre for Cardiovascular Research (DZHK), Partner Site Rhein-Main, Frankfurt am Main, Germany
3. Department of Cardiac Surgery, Kerckhoff Heart Center, Bad Nauheim, Germany
4. Department of Cardiology, Kerckhoff Heart Center, Bad Nauheim, Germany
5. Department of Cardiology, Justus Liebig University of Giessen, Giessen, Germany
6. Department of Epidemiology, Baylor Scott and White Health, Dallas, TX, USA
7. Department of Internal Medicine, St. Johannes-Hospital, Dortmund, Germany