1. Faculty of Medicine and Health University of New South Wales Sydney New South Wales Australia
2. Sydney Musculoskeletal Health, Kolling Institute of Medical Research University of Sydney Camperdown New South Wales Australia
3. Department of Orthopedic Surgery John Hunter Hospital New Lambton New South Wales Australia
4. Department of Rheumatology Royal North Shore Hospital Sydney New South Wales Australia
5. Department of Musculoskeletal Imaging Castlereagh Imaging St Leonards New South Wales Australia
6. Institute of Social and Preventive Medicine University of Bern Bern Switzerland
7. Department of Rheumatology, Immunology and Allergology University Hospital and University of Bern Bern Switzerland
8. Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital Bern University Hospital, University of Bern Bern Switzerland
9. Northern Sydney Local Health District Executive Royal North Shore Hospital St Leonards New South Wales Australia
10. Department of Statistics, Faculty of Science and Engineering Macquarie University Sydney New South Wales Australia
11. Hip Arthroscopy Australia Melbourne Victoria Australia
12. St Vincent's Private Hospital Melbourne Victoria Australia