1. General Surgery Unit, Ospedale Sandro Pertini, ASL, Rome, Italy
2. Anesthesia and Intensive Care Unit, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy
3. Transfusion Medicine Unit, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy
4. Transfusion Medicine Unit, ASST Ovest Milanese, Legnano, Italy
5. Transfusion Medicine Unit, IRCCS Policlinico San Martino Hospital, Genova, Italy
6. Transfusion Medicine Unit, Agrigento, Italy
7. General Surgery Unit, IRCCS Policlinico San Martino Hospital, Genoa, Italy
8. General Surgery Unit, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy
9. Department of Health Science, Department of Anesthesia and Critical Care, University of Florence, Prehabilitation Clinic AOU-Careggi Hospital, Firenze, Italy
10. Department of Anesthesia and Intensive Care, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
11. Transfusion Medicine Unit, AUSL Romagna, Ravenna, Italy
12. Transfusion Medicine Unit, AOU Policlinico, Bari, Italy
13. Transfusion Medicine Unit, Città della Salute e Della Scienza, Torino, Italy
14. Transfusion Medicine Unit, AULSS 8, Vicenza, Italy
15. General Surgery Unit, ASST Ovest Milanese, Legnano, Italy
16. General Surgery Unit, Ospedale del Mare, ASL Napoli 1 Centro, Naples, Italy
17. Transfusion Medicine Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori, “Fondazione G. Pascale” IRCSS, Naples, Italy
18. Colorectal Surgical Oncology, Abdominal Oncology Department, Istituto Nazionale per lo Studio e la Cura dei Tumori, “Fondazione G. Pascale” IRCSS, Naples, Italy
19. Anesthesia and Intensive Care Unit, Ospedale Sandro Pertini, ASL Roma 2, Rome, Italy
20. Department of Transfusion Medicine, AOU Verona, Verona, Italy
21. Transfusion Medicine Unit, Ospedale Sandro Pertini, ASL Roma 2, Rome, Italy
22. Oncologic Surgery Unit, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
23. Regional Blood Center Toscana, Firenze, Italy
24. Transfusion Medicine Unit, Azienda Ospedaliero Universitaria di Sassari, Sassari, Italy
25. Transfusion Medicine Unit, Santa Croce e Carle Hospital, Cuneo, Italy
26. Department of Clinical and Experimental Medicine, University of Florence, IBD Unit, AOU-Careggi Hospital, Firenze, Italy
27. General Surgery Unit, Infermi Hospital, Rimini, Italy
28. Cardiology Unit, Ospedale Sandro Pertini, ASL Roma 2, Rome, Italy
29. Transfusion Medicine Unit, Great Metropolitan Niguarda Hospital, Milano, Italy
30. Abdominal Robotic Surgery Unit, Abdominal Oncology Department, Istituto Nazionale per lo Studio e la Cura dei Tumori, IRCCS “Fondazione G. Pascale,” Naples, Italy
31. General Surgery Unit, S. Spirito Hospital, Pescara, Italy
32. General Surgery Unit, Ospedale Evangelico Betania, Naples, Italy
33. General Surgery Unit, Ospedale di Caltanissetta
34. Breast Unit, Azienda Ospedaliera Brotzu, Cagliari, Italy
35. National Blood Center, Istituto Superiore di Sanità, Rome, Italy
36. President SIAARTI, Anesthesia and Intensive Care Unit, AOU Policlinico P. Giaccone, Palermo, Italy
37. President SIdEM, Transfusion Medicine Unit, AOU Policlinico, Bari, Italy
38. President SIMTI, Transfusion Medicine Unit, AULSS 8 Berica, Vicenza, Italy
39. President ACOI, General Surgery Unit, Santa Maria Annunziata & Serristori Hospital, Firenze, Italy