1. Cardiothoracic Department, University Hospital of Udine, DAME Udine Medical School, Udine, Italy
2. Cardiac Surgery, University “G. D’Annunzio” Chieti-Pescara, Chieti, Italy
3. Division of Cardiac Surgery, Santa Maria Hospital, GVM Care & Research, Bari, Italy
4. Cardiac Surgery, S. Orsola-Malpighi University Hospital, University of Bologna, Bologna, Italy
5. Cardiac Surgery, European Hospital, Roma, Italy
6. Cardiac Surgery, University Hospital, Varese, Italy
7. Cardiac Surgery, San Donato IRCCS Hospital, San Donato Milanese, Milan, Italy
8. Cardiac Surgery, Poliambulanza Foundation Hospital, Brescia, Italy
9. Cardiac Surgery, IRCCS San Martino-IST, University Hospital, Genova, Italy
10. Cardiac Surgery, Ospedali Riuniti “Umberto I-Lancisi-Salesi”, Ancona, Italy
11. Cardiac Surgery, S. Anna Hospital, Catanzaro, Italy
12. Cardiac Surgery, Mauriziano Hospital, Turin, Italy
13. Cardiac Surgery, Molinette Hospital, University of Turin, Turin, Italy
14. Cardiac Surgery, Sacco Hospital, University of Milan, Milan, Italy
15. Cardiac Surgery, S Bartolo Hospital, Vicenza, Italy
16. Cardiac Surgery, Papa Giovanni XXIII Hospital, Bergamo, Italy
17. Cardiac Surgery, Vita e Salute San Raffaele University, IRCCS San Raffaele Hospital, Milan, Italy
18. Cardio-Thoracic Surgery Department, Heart & Vascular Centre, Cardiovascular Research Institute, Maastricht, Netherlands
19. Cardiac Surgery, Santa Chiara University Hospital, Pisa, Italy