1. Rigshospitalet, Department of Cardiology, University of Copenhagen 9 Blegdamsvej, Copenhagen, Denmark
2. Manchester University NHS Foundation Trust, Southmoor Road, Manchester, UK
3. Heart Transplantation Unit, Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Hasomer, Ramat Gan, Israel
4. Cardiovascular Surgery, University Hospital of Duesseldorf, Moorenstrasse 5, Dusseldorf, Germany
5. National Research Cardiac Surgery Center, 38 Turan Street, Astana, Kazakhstan
6. German Heart Center, Augustenburger Platz 1, Berlin, Germany
7. Hannover Medical School, Carl-Neuberg Strasse 1, Hannover, Germany
8. Department of Cardiothoracic Surgery, Herz- und Diabeteszentrum NRW, Georgstrasse 11, Bad Oeynhausen, Germany
9. Abbott, Abbott Park Road, Abbott Park, Chicago, IL, USA
10. Department of Surgery, Division of Cardiac Surgery, Medical University of Vienna, Waehringer Guertel 18–20, Vienna, Austria
11. Department of Cardiac Surgery, Heart Center Leipzig, University of Leipzig, Struempellstr. 39, Leipzig, Germany