1. Emergency Department, Queen Elizabeth II Jubilee Hospital; Metro South Hospital and Health Service; Brisbane Queensland Australia
2. Physiotherapy Department, Queen Elizabeth II Jubilee Hospital; Metro South Hospital and Health Service; Brisbane Queensland Australia
3. School of Health and Rehabilitation Sciences; The University of Queensland; Brisbane Queensland Australia
4. Emergency and Trauma Centre, Royal Brisbane and Women's Hospital; Metro North Hospital and Health Service; Brisbane Queensland Australia
5. Faculty of Medicine; The University of Queensland; Brisbane Queensland Australia
6. Centre for Health Services Research, Faculty of Medicine; The University of Queensland; Brisbane Queensland Australia