1. Department of Clinical Medicine Faculty of Medicine University of Colombo Colombo Sri Lanka
2. Faculty of Medicine and Health Sydney School of Public Health Institute for Musculoskeletal Health The University of Sydney Sydney New South Wales Australia
3. Department of Chiropractic Faculty of Medicine, Health and Human Sciences Macquarie University Sydney New South Wales Australia
4. Department of Public Health University of Kelaniya Ragama Sri Lanka
5. Institute of Bone and Joint Research Kolling Institute University of Sydney Sydney New South Wales Australia
6. Rheumatology Department Royal North Shore Hospital Sydney New South Wales Australia
7. Division of Rheumatology, Allergy, and Immunology Department of Medicine Massachusetts General Hospital Boston Massachusetts USA