1. Division of Cardiac Surgery, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
2. Division of Cardiac Surgery, University of Parma, Parma, Italy
3. Department of Surgery, Oulu University Hospital and Research Unit of Surgery, Anesthesiology and Critical Care, University of Oulu, Oulu, Finland
4. Hamburg University Heart Center, Hamburg, Germany
5. Division of Cardiovascular Surgery, Verona University Hospital, Verona, Italy
6. Department of Thoracic and Cardio-Vascular Surgery, University Hospital Jean Minjoz, Besançon, France
7. Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
8. Department of Cardiothoracic Surgery and Anesthesiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
9. Cardiovascular Center, Paracelsus Medical University, Nuremberg, Germany
10. Department of Cardiac Surgery, Città di Lecce Hospital, GVM Care & Research, Lecce, Italy
11. Department of Cardiac Surgery, St. Anna Hospital, Catanzaro, Italy
12. Department of Cardiovascular Sciences, Cardiac Surgery Unit, S. Camillo-Forlanini Hospital, Rome, Italy
13. Division of Cardiac Surgery, University of Genoa, Genoa, Italy
14. Department of Cardiac Surgery, Centro Cardiologico Monzino IRCCS, Milan, Italy
15. Division of Cardiothoracic and Vascular Surgery, Pontchaillou University Hospital, Rennes, France
16. Cardio-Thoracic and Vascular Department, Trieste University Hospital, Trieste, Italy
17. Division of Thoracic and Cardiovascular Surgery, Robert Debré University Hospital, Reims, France
18. Cardiothoracic Department, ISMeTT/UPMC, Palermo, Italy
19. Heart and Lung Center, Helsinki University Hospital, Helsinki, Finland
20. Department of Cardiovascular Sciences, Clinical Sciences Wing, University of Leicester, Glenfield Hospital, Leicester, UK
21. Department of Surgery, University of Turku, Turku, Finland