1. The Queen Elizabeth Hospital; Rheumatology Unit; 28 Woodville Road Woodville South Australia Australia 5011
2. Royal Prince Alfred Hospital; Rheumatology; Missenden Road Camperdown New South Wales Australia 2050
3. Cleveland Clinic: Orthopedic and Rheumatologic Institute; Department of Rheumatic and Immunologic Diseases; 9500 Euclid Ave- A50 Cleveland OH USA 44195
4. Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University; Monash Department of Clinical Epidemiology at Cabrini Hospital; Suite 41, Cabrini Medical Centre 183 Wattletree Road Malvern Victoria Australia 3144