1. Internal Medicine and Cardiology Division, University of Leipzig Heart Center, Strümpellstrasse 39, D-04289 Leipzig, Germany
2. Department of Cardiovascular Medicine, Cleveland Clinic, 44195 Cleveland, OH, USA
3. Centre Hospitalier Régional et Universitaire, Lille, France
4. Peter Osypka Heart Centre, Munich, Germany
5. Heart Centre and Clinical Institute, Aalborg University Hospital, Aalborg, Denmark
6. Biotronik SE & Co. KG, Berlin, Germany
7. Department of Public Health, University of Copenhagen, Copenhagen, Denmark
8. Innovative Clinical Trials, Department of Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany
9. Department of Clinical Epidemiology, Aalborg University Hospital, Aalborg, Denmark