1. Department of Internal Medicine III, Cardiology and Angiology University Hospital Schleswig‐Holstein Kiel Germany
2. Institute of Medical Informatics and Statistics Kiel University University Hospital Schleswig‐Holstein Kiel Germany
3. Department of Cardiology and Angiology Contilia Heart and Vascular Centre Elisabeth‐Krankenhaus Essen Germany
4. Department of Cardiovascular Surgery University Hospital Schleswig‐Holstein Kiel Germany
5. DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck Kiel Germany