1. Medizinische Klinik I LMU University Hospital Munich Germany
2. Department of Cardiology Inselspital University Hospital Bern Bern Switzerland
3. Department of Cardiology University Medical Center Mainz Mainz Germany
4. Department of Cardiac Surgery Medical University of Vienna Vienna Austria
5. Department of Cardiology University Hospital Cologne Cologne Germany
6. Department of Cardiac Surgery Inselspital University Hospital Bern Bern Switzerland
7. Department of Cardiovascular Surgery German Heart Center, Munich, Technical University Munich Munich Germany
8. Department of Cardiology University Hospital Hamburg Hamburg Germany
9. Department of Cardiology Heart‐ und Diabetes Center Nordrhine‐Westfalia, Bad Oeynhausen, Ruhr‐University Bochum Bochum Germany
10. Department of Cardiology Kepler University Hospital Linz Austria
11. Department of Cardiac Surgery University Hospital Bonn Bonn Germany
12. Department of Cardiology University Hospital Bonn Bonn Germany
13. Department of Cardiology Ospedale Universitaria Pisana Pisa Italy
14. Department of Cardiothoracic Surgery Oslo University Hospital Oslo Norway
15. Université Lille, Inserm, CHU Lille, Institut Pasteur de Lille Lille France
16. Department of Cardiovascular Medicine Acute and Interventional Cardiology UZ Leuven Leuven Belgium
17. Department of Cardiology Royal Brompton Hospital London UK
18. Department of Cardiac Surgery Royal Brompton Hospital London UK
19. Department of Cardiac Surgery German Heart Center Berlin Germany
20. Department of Cardiology CIBER‐CV, University Clinic Hospital Valladolid Valladolid Spain
21. Department of Cardiology Hospital Clínico San Carlos Madrid Spain
22. Department of Cardiology Clinique Pasteur Toulouse France
23. Department of Cardiology University Hospital Alvaro Cunqueiro Vigo Spain
24. Department of Biomedical Sciences Humanitas University, Pieve Emanuele‐Milan, Italy; Humanitas Research Hospital IRCCS Rozzano‐Milan Italy
25. Department of Cardiology University Hospital Tuebingen Tuebingen Germany
26. Department of Cardiology Heart Center Leipzig Leipzig Germany
27. Department of Cardiology Puerta de Hierro Hospital Madrid Spain
28. University Department of Cardiac Surgery Heart Center Leipzig Leipzig Germany
29. Department of Cardiac Surgery University Hospital Frankfurt Frankfurt Germany
30. Department of Internal Medicine II University Hospital Regensburg Regensburg Germany