1. Whitlam Orthopaedic Research Centre, Ingham Institute for Applied Medical Research, Sydney, Australia
2. South Western Sydney Clinical School, University of New South Wales, Sydney, Australia
3. Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
4. Monash Department of Clinical Epidemiology, Cabrini Institute, Melbourne, Australia
5. School of Population Health, University of New South Wales, Sydney, Australia
6. John Hunter Hospital, Newcastle, Australia
7. University of Newcastle, Newcastle, Australia
8. Canberra Hospital, Canberra, Australia
9. Ingham Institute for Applied Medical Research, Sydney, Australia
10. School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
11. Fiona Stanley Hospital, Perth, Australia
12. St George and Sutherland Hospitals, Sydney, Australia
13. St George and Sutherland Clinical School, University of New South Wales, Sydney, Australia
14. Wellington Hospital, Wellington, New Zealand
15. Concord Hospital, Sydney, Australia
16. Nambour General Hospital, Nambour, Australia
17. Sunshine Coast University Hospital, Nambour, Australia
18. Westmead Hospital, Sydney, Australia
19. Campbelltown Hospital, Sydney, Australia
20. Mackay Base Hospital, Mackay, Australia
21. Western Health, Melbourne, Australia
22. University Hospital Geelong, Barwon Health, Geelong, Australia
23. Barwon Centre for Orthopaedic Research and Education, School of Medicine, Deakin University, Geelong, Australia
24. Launceston Hospital, Launceston, Australia
25. Gosford and Wyong Hospitals, Gosford, Australia
26. Prince of Wales Hospital, Sydney, Australia
27. St Vincent’s Hospital, Sydney, Australia
28. Royal Melbourne Hospital, Melbourne, Australia
29. Liverpool Hospital, Sydney, Australia