1. Department of Anesthesiology and Critical Care Medicine Leonard Davis Institute for Health Economics, University of Pennsylvania 3400 Spruce St 19104 Philadelphia PA USA
2. University College London London UK
3. Department of Anesthesia and Intensive Care Medicine Royal Surrey County Hospital Guildford Surrey UK
4. Sir Charles Gardiner Hospital Hospital Avenue 6009 Nedlands WA Australia
5. Salford Royal NHS Foundation Trust Stott La M6 8HD Salford UK
6. University of Manchester Manchester UK
7. Western General Hospital, NHS Lothian EH4 2XU Edinburgh Scotland
8. Hvidovre University Hospital Copenhagen Denmark
9. Harvard Medical School, Kessler Director, Center for Surgery and Public Health, Brigham and Women's Hospital and Division of Trauma, Burns, Surgical Critical Care, and Emergency Surgery, Brigham and Women's Hospital 1620 Tremont Street 02120 Boston MA USA
10. School of Population Health and Environmental Sciences, Faculty of Life Sciences and Medicine Guy's and St Thomas’ NHS Foundation Trust, King's College London London UK
11. Division of Surgery and Interventional Science University College London London UK
12. Department of Surgery Virginia Commonwealth University Health System 1200 E. Broad Street 23298 Richmond VA USA
13. Department of Anesthesiology and Critical Care Medicine, Department of Surgery The Johns Hopkins University School of Medicine 1800 Orleans Street 21287 Baltimore MD USA
14. Department of Emergency and Trauma Surgery Karolinska University Hospital, CLINTEC, Karolinska Institutet Stockholm Sweden
15. Karolinska University Hospital Huddinge Hälsovägen 3. B85 141 86 Stockholm Sweden
16. Department of Anaesthesia, Perioperative Medicine and Critical Care Medway Maritime Hospital Windmill Road ME7 5NY Gillingham, Kent UK
17. Division of Trauma, Burns and Surgical Critical Care Brigham and Women's Hospital 75 Francis Street 02115 Boston MA USA
18. Division of Trauma and Acute Care Surgery Medical College of Wisconsin 8701 Watertown Plank Rd 53226 Milwaukee WI USA
19. Department of Visceral Surgery Lausanne University Hospital CHUV, University of Lausanne (UNIL) Rue du Bugnon 46 1011 Lausanne Switzerland
20. Department of Anesthesia St George's Hospital Tooting, London UK
21. Department of Research and Evaluation Kaiser Permanente Research 9110 Pasadena CA USA
22. Department of General and Colorectal Surgery Salford Royal NHS Foundation Trust Scott La M6 8HD Salford UK
23. Faculty of Medicine and Health, School of Health and Medical Sciences, Department of Surgery Örebro University Örebro Sweden
24. Gastrointestinal Surgery, Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre Nottingham University Hospitals and University of Nottingham, Queen's Medical Centre NG7 2UH Nottingham UK
25. MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences University of Nottingham, Queen's Medical Centre NG7 2UH Nottingham UK
26. Division of Trauma and Emergency Surgery, Department of Surgery Orebro University Hospital and School of Medical Sciences, Orebro University 701 85 Orebro Sweden
27. Division of Trauma and Acute Care Surgery, Department of Surgery Fundación Valle del Lili Cra 98 No. 18 – 49 760032 Cali Colombia
28. Sección de Cirugía de Trauma y Emergencias Universidad del Valle – Hospital Universitario del Valle Cl 5 No. 36‐08 760032 Cali Colombia
29. Department of Anesthesia and Intensive Care Medicine Royal Surrey County Hospital Egerton Road GU5 7XX Guildford, Surrey UK
30. Division of Traumatology, Surgical Critical Care and Emergency Surgery University of Pennsylvania 19104 Philadelphia PA USA
31. Department of Anesthesiology The Ohio State University and Wexner Medical Center 410 West 10Th Ave 43210 Columbus OH USA
32. Department of Surgery University of California San Francisco 513 Parnassus Ave HSW1601 94143 San Francisco CA USA
33. Department of Anesthesiology, Critical Care and Pain Medicine‐Hospital for Special Surgery Department of Anesthesiology‐Weill Cornell Medicine 535 East 70th Street 10021 New York NY USA
34. Division of Colon and Rectal Surgery, Department of Surgery Mayo Clinic College of Medicine, Mayo Clinic Arizona 5777 e. Mayo Blvd. 85054 Phoenix AZ USA
35. Department of Anesthesiology Keck School of Medicine University of Southern California 2020 Zonal Avenue IRD 322 90033 Los Angeles CA USA
36. Department of Anesthesiology, Perelman School of Medicine University of Pennsylvania 3400 Spruce St. 19104 Philadelphia PA USA