1. Departments of Cardiology (B.S., P.M.B., S. Blankenberg, S.D., A.G., P.K., D.W.), University Heart and Vascular Center Hamburg, Germany.
2. German Center for Cardiovascular Research (DZHK), partner site Hamburg/Lübeck/Kiel, Germany (B.S., P.M.B., A.B., S. Blankenberg, S.D., M.E., I.E., D.F., N.F., T.G., P.K., C.N., D.W.).
3. Cardiothoracic Surgery (A.B., H.R.), University Heart and Vascular Center Hamburg, Germany.
4. Tampa General Hospital, University of South Florida (H.B.).
5. Medizinische Klinik und Poliklinik I (S. Brunner, D.K., M.O.), LMU Klinikum, Munich, Germany.
6. Department of Anesthesiology and Critical Care Medicine, CHU Montpellier, University Montpellier, France (P.C., M.M.).
7. Division of Anesthesia, Critical Care and Pain Medicine (G.C.D.), Massachusetts General Hospital, Boston.
8. Department of Cardiology, Paracelsus Medical University Nürnberg, Germany (D.E., M.P.).
9. Department of Internal Medicine III, Cardiology and Angiology, University Hospital Schleswig-Holstein, Kiel, Germany(M.E., D.F., N.F., C.N.).
10. University Heart Center Lübeck, University Hospital Schleswig-Holstein, Germany (I.E., T.G.).
11. Division of Cardiac Surgery (M.F., D.M.), Massachusetts General Hospital, Boston.
12. Herzchirurgische Klinik und Poliklinik (C.H.), LMU Klinikum, Munich, Germany.
13. Institute of Cardiovascular Sciences, University of Birmingham and University Hospitals Birmingham and Sandwell and West Birmingham National Health ServiceTrusts, United Kingdom (P.K.).
14. Department of Cardiology, Campus Benjamin, Charité Universitätsmedizin Berlin, Germany (U.L., C.S.).
15. Franklin/German Centre for Cardiovascular Research (DZHK), partner site Berlin/Institute of Health (BIH), Germany (U.L., C.S.).
16. Department of Internal Medicine, University of California, San Diego (J.L.).
17. Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (M.L., D.A.M., A.V.).
18. Department of Internal Medicine and Cardiology, Heart Center Leipzig at University of Leipzig and Leipzig Heart Institute, Germany (N.M., M.S., L.S., H.T., F.T.).
19. Department of Internal Medicine I, University Hospital Würzburg, Germany (O.M., P.N.).
20. Department of Internal Medicine I, University Hospital Jena, Germany (S.M.-W., P.C.S.).
21. Advanced Heart Failure and Mechanical Circulatory Support Program, Vita Salute University, Milan, Italy (F.P., V.P.).
22. Department of Anesthesia and Intensive Care, IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) ISMETT (Istituto Mediterraneo trapianti e terapie avanzate), UPMC (University of Pittsburgh Medical Center)Italy, Palermo, Italy (F.P.).
23. Department of Interventional Cardiology, St. Rita’s Medical Center, Lima, OH (S.M.P.).
24. Medizinische Klinik II, Klinikum Weiden, Germany (R.H.G.S., L.W.).
25. University Heart Center Bonn, Department of Cardiology, Germany (J.-M.S., A.A.).