1. Population Health Research Institute, Hamilton, Ontario, Canada
2. Department of Medicine, McMaster University, Hamilton, Ontario, Canada
3. Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
4. Department of Orthopaedic Surgery and Traumatology, Hospital Universitario Vall d’Hebron, Barcelona, Spain
5. Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
6. Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland
7. Division of Orthopaedic Surgery, Department of Surgery, The Ottawa Hospital - General Campus, University of Ottawa, Ottawa, Ontario, Canada
8. Sancheti Institute for Orthopaedics & Rehabilitation & PG College, Pune, India
9. Department of Orthopaedic Surgery and Traumatology, Parc Taulí Hospital Universitario, Sabadell, Spain
10. Department of Orthopaedic Surgery and Traumatology, Hospital Clinic Barcelona, Barcelona, Spain
11. Orthopaedic and Traumatology Department, Vall d’Hebron Hospital, Barcelona, Spain
12. Numen Health Bangalore, Bangalore, India
13. Department of Orthopedics, Government TD Medical College, Vandanam, India
14. Center for Intensive Care and Perioperative Medicine, Jagiellonian University Medical College, Krakow, Poland
15. Department of Surgery, Oak Valley Health, Markham, Ontario, Canada
16. Independent Public Health Care Center, SPZOZ Myślenice, Myślenice, Poland
17. Division of Orthopaedic Surgery, University of the Witwatersrand, Johannesburg, South Africa
18. Department of Anaesthesiology and Critical Care, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
19. Department of Surgery, Aga Khan University, Karachi City, Pakistan
20. Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
21. Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario Canada
22. Department of Surgery, University of Western Ontario, London, Ontario, Canada
23. Lawson Health Research Institute, London, Ontario, Canada
24. The Sant Pau Biomedical Research Institute, Barcelona, Spain
25. Iberoamerican Cochrane Center, Barcelona, Spain
26. Department of Orthopaedic Surgery, Shifa International Hospital, Islamabad, Pakistan
27. Department of Anaesthesiology, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
28. Section of Anaesthetics, Pain Medicine & Intensive Care, Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
29. Department of Anaesthesia and Perioperative Medicine, Groote Schuur Hospital, University of Cape Town, Western Cape, South Africa
30. Department of Anesthesia and Critical Care, McMaster University, Hamilton, Ontario, Canada
31. Department of Medicine, University of Montreal, Montreal, Quebec, Canada
32. Department of Statistics, Population Health Research Institute, David Braley Cardiac, Vascular and Stroke Research Institute, Hamilton, Ontario, Canada
33. Perioperative Medicine and Surgical Research Unit, Population Health Research Institute, David Braley Cardiac, Vascular and Stroke Research Institute, Hamilton, Ontario, Canada
34. Department of Medicine, Unisinos University, São Leopoldo, Brazil
35. Internal Medicine Service, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil