1. Institute for Musculoskeletal Health The University of Sydney and Sydney Local Health District Sydney New South Wales Australia
2. Sydney School of Public Health, Faculty of Medicine and Health The University of Sydney Sydney New South Wales Australia
3. Sydney Health Ethics, Faculty of Medicine and Health The University of Sydney Sydney New South Wales Australia
4. Emergency Department Canterbury Hospital Sydney New South Wales Australia
5. Clinical Pharmacology and Toxicology Department St Vincent's Hospital Sydney New South Wales Australia
6. St Vincent's Clinical School The University of New South Wales Sydney New South Wales Australia