1. Cardiology, Department of Medicine Goethe University Hospital Frankfurt Germany
2. Medical Clinic I, Department of Cardiology, University Hospital Giessen Justus Liebig University Giessen Giessen Germany
3. Comprehensive Heart Failure Center University Hospital Würzburg Würzburg Germany
4. Klinikum Karlsburg Heart and Diabetes Center Mecklenburg‐Western Pommerania Karlsburg Germany
5. Division Heart & Lungs, Department of Cardiology University Medical Centre Utrecht Utrecht The Netherlands
6. Medical Centre Coburg GmbH II, Medical Clinic Cardiology, Angiology, Pulmonology Coburg Germany
7. Thorax Center Erasmus MC University Medical Center Rotterdam The Netherlands
8. Cardiology, Department of Medicine I, Centre for Internal Medicine University Hospital Würzburg Würzburg Germany
9. Department of Cardiology and Angiology I, University Heart Center Freiburg University of Freiburg Bad Krozingen Germany
10. Abbott, Sylmar Sylmar CA USA
11. Klinik für Innere Medizin III, Universitätsklinikum des Saarlandes Saarland University Homburg Germany
12. Clinic III for Internal Medicine, and Cologne Cardiovascular Research Center (CCRC) University of Cologne Heart Center Köln Germany