1. Department of Cardiology and Angiologie Helios Kliniken Schwerin Schwerin Germany
2. Department of Rhythmology Cardiology and Internal Medicine, Asklepios Klinik Hamburg Altona Hamburg Germany
3. Department of Rhythmology University Heart Center Lübeck, University Hospital Schleswig‐Holstein Lübeck Germany
4. German Center for Cardiovascular Research Partner Site Hamburg/Kiel/Luebeck Luebeck Germany