1. General, Emergency and Trauma Surgery Dept., Pisa University Hospital, Pisa, Italy
2. General and Emergency Surgery, Macerata Hospital, Macerata, Italy
3. Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo
4. Department of Surgery, Anadolu Medical Center, Kocaali, Turkey
5. General, Emergency and Trauma Surgery Dept., Monza University Hospital, Monza, Italy
6. ICU Department, Careggi Hospital, Firenze, Italy
7. Emergency and Trauma Surgery, Maggiore Hospital, Parma, Italy
8. General and Emergency Surgery, NHS Lothian, Edinburgh, UK
9. General, Emergency and Trauma Surgery Department, Pavia University Hospital, Pavia, Italy
10. Ernest E Moore Shock Trauma Center at Denver Health, Denver (Colorado), USA
11. Trauma Surgery Department, Scripps Memorial Hospital, La Jolla, California, USA
12. Division of Trauma and Acute Care Surgery and Comparative Effectiveness and Clinical Outcomes Research Center - CECORC, Riverside University Health System, Moreno Valley, California