1. Department of Cardiovascular Surgery University Heart Center Hamburg Hamburg Germany
2. Department of Cardiothoracic Surgery University Hospital Regensburg Regensburg Germany
3. University Department of Cardiac Surgery Leipzig Heart Center Leipzig Germany
4. Division of Cardiovascular Thoracic and Transplantation Surgery Hannover Medical School Hannover Germany
5. Department of Cardiology University Hospital Heidelberg Heidelberg Germany
6. Department of Cardiothoracic and Vascular Surgery German Heart Institute Berlin DZHK (German Centre for Cardiovascular Research), partner site Berlin Berlin Germany
7. Department of Cardiac Surgery Munich Transplantation Center Klinikum Großhadern LMU Munich Germany
8. Department of Cardiovascular Medicine Division of Cardiology University Hospital Münster Münster Germany
9. Novartis Pharma GmbH Nuremberg Germany
10. Department of Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW Ruhr University Bochum Bad Oeynhausen Germany