1 Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.
2 Department of Cardiology, Heart Center Leipzig, University of Leipzig, Leipzig, Germany.
3 Medizinische Klinik und Poliklinik I, LMU Klinikum, LMU München, Munich, Germany.
4 Department of General and Interventional Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Bad Oeynhausen, Germany.
5 Department of Cardiology, University Heart and Vascular Center Hamburg, Hamburg, Germany.
6 German Center of Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Germany.
7 Department of Cardiology, Ulm University Hospital, Ulm, Germany.
8 Department of Cardiology, Inselspital Bern, Bern University Hospital, Bern, Switzerland.
9 Department of Cardiology, Heart Center, Zentralklinik Bad Berka, Bad Berka, Germany.
10 Heart Valve Center, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele Scientific Institute, Milan, Italy.
11 Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, University Duisburg-Essen, Essen, Germany.
12 Hospital Álvaro Cunqueiro, Vigo, Spain.
13 Department of Cardiology, Helios Klinikum Siegburg, Siegburg, Germany.
14 Medical Clinic III, University Hospital Tübingen, Tübingen, Germany.
15 ASST Spedali Civili di Brescia, Brescia, Italy and Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy.
16 Cardiology Department, Centre Hospitalier Universitaire de Lille, Lille, France.
17 Department of Internal Medicine III, Division of Cardiology, University Hospital Heidelberg, Ruprecht-Karl University Heidelberg, Heidelberg, Germany.
18 University Heart Center Freiburg/Bad Krozingen, Bad Krozingen, Germany.
19 Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland.
20 Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden.
21 Department of Cardiology, Heart Center, University of Cologne, Cologne, Germany.
22 German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany.