1. Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University; Monash-Cabrini Department of Musculoskeletal Health and Clinical Epidemiology; Cabrini Health; Melbourne Australia
2. Adelaide Medical School, Robinson Research Institute; The University of Adelaide; North Adelaide Australia
3. Rheumatology Unit; Queen Elizabeth Hospital; Woodville South Australia
4. Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences; Stellenbosch University; Cape Town South Africa
5. Department of Rheumatology; Leiden University Medical Center; Leiden Netherlands