1. Department of Clinical Medicine Faculty of Medicine University of Colombo Colombo Sri Lanka
2. Department of Public Health University of Kelaniya Ragama Sri Lanka
3. Department of Rheumatology and Rehabilitation (General) National Hospital Sri Lanka Colombo Sri Lanka
4. Division of Rheumatology, Allergy, and Immunology Department of Medicine Massachusetts General Hospital Boston MA USA
5. Institute of Bone and Joint Research Kolling Institute University of Sydney Sydney Australia
6. Rheumatology Department Royal North Shore Hospital Sydney NSW Australia