1. Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney
2. Institute for Musculoskeletal Health, The University of Sydney and Sydney Local Health District, Sydney, NSW
3. Monash Department of Clinical Epidemiology, Cabrini Institute
4. Department of Epidemiology and Preventive Medicine, School of Public Health & Preventive Medicine, Monash University, Melbourne, VIC, Australia
5. Department of Physiotherapy, Medicine and Biomedical Sciences, Universidade da Coruña, Faculty of Physiotherapy, Coruña, Spain