1. Department of Cardiology, Liverpool Heart and Chest Hospital, Liverpool, L14 3PE UK
2. Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
3. Department of Cardiovascular Surgery, German Center of Cardiovascular Research (DZHK), partner site Berlin, Berlin, Germany
4. Department of Cardiovascular Surgery, Steinbeis University Berlin, Institute (STI) of Cardiovascular Perfusion, Berlin, Germany
5. Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
6. Heart Center Leipzig, Leipzig, Germany
7. Department of Cardiology, University of Lille, CHU Lille, F-59000 Lille, France
8. Department of Clinical Sciences and Community Health, IRCCS Fondazione Ca’ Granda, Ospedale Maggiore di Milano, University of Milan, Milan, Italy
9. Cardiology, Antwerp University Hospital, Antwerp, Belgium