1. Department of Cardiology, University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf , Martinistraße 52, 20246 Hamburg , Germany
2. Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), site Hamburg/Kiel/Lübeck , Hamburg , Germany
3. Department of Cardiology, University Heart Center Freiburg , Bad Krozingen , Germany
4. Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University , Melbourne, 553 St Kilda Road, Melbourne, VIC 3004 , Australia