1. School of Medicine, University of Notre Dame, Sydney, New South Wales, Australia
2. Institute for Musculoskeletal Health, Sydney, New South Wales, Australia
3. Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
4. Sydney Pharmacy School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
5. Monash Department of Clinical Epidemiology, Cabrini Institute, Malvern, Victoria, Australia
6. Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
7. Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
8. University Hospitals Coventry and Warwickshire, Coventry, UK