1. Department of Cardiology, Heart Center University Hospital Cologne Cologne Germany
2. Department of Cardiology, University Heart & Vascular Center Hamburg University Medical Center Hamburg‐Eppendorf Hamburg Germany
3. Medizinische Klinik und Poliklinik München Germany
4. Herz‐ und Diabeteszentrum NRW Bad Oeynhausen Germany
5. Herzzentrum Leipzig Leipzig Germany
6. Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center University Hospital Essen Essen Germany
7. Universitaetsklinikum Schleswig Holstein Campus Lubeck Germany
8. Universitätsklinikum Bonn Bonn Germany
9. Katholisches Marienkrankenhaus Hamburg Germany
10. University Hospital Tübingen Tübingen Germany
11. Cardialysis Rotterdam The Netherlands