University of Freiburg - University Heart Center Freiburg-Bad Krozingen (UHZ), Department of Cardiology, Sana Klinikum Offenbach, University of Birmingham, Department of Thoracic, Cardiac and Thoracic Vascular Surgery, University of Frankfurt, University of Cologne, Faculty of Medicine, and University Hospital Cologne, Department of Cardiology, Goethe University Frankfurt - Institute of Biostatistics and Mathematical Modelling, Department of Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW, St. Johannes-Hospital - Department of Internal Medicine, BQS Institute for Quality and Patient Safety, Department of Cardiac Surgery, University Hospital Lübeck, Department of Cardiology, Robert-Bosch-Hospital, Department of Cardiac and Vascular Surgery, University Hospital Kiel, LANS Cardio, Department of Cardiac Surgery, University Hospital Lübeck, Heart and Diabetes Center North Rhine Westfalia, University Hospital of the Ruhr University Bochum, BQS Institute for Quality and Patient Safety, Germany Society for Thoracic and Cardiovascular Surgery, Langenbeck-Virchow-Haus, Department of Cardiology, Campus Kerckhoff University of Giessen and Independent

University of Birmingham, University of Birmingham, University Hospitals Coventry and Warwickshire NHS Trust and University of Birmingham