1. Emergency Department Perth Children's Hospital Perth Western Australia Australia
2. School of Nursing, Faculty of Health Sciences Curtin University Perth Western Australia Australia
3. Children's Emergency Department Starship Children's Hospital Auckland New Zealand
4. Department of Paediatrics: Child and Youth Health University of Auckland Auckland New Zealand
5. Clinical Epidemiology and Biostatistics Melbourne Children's Trials Centre, Murdoch Children's Research Institute Melbourne Victoria Australia
6. Child & Adolescent Health Service Perth Children's Hospital Perth Western Australia Australia
7. Divisions of Emergency Medicine and Paediatrics, School of Medicine University of Western Australia Perth Western Australia Australia
8. Emergency Department Royal Children's Hospital Parkville Victoria Australia
9. Emergency Research Murdoch Children's Research Institute Melbourne Victoria Australia
10. Departments of Paediatrics and Critical Care University of Melbourne Melbourne Victoria Australia
11. Departments of Surgery and Paediatrics: Child and Youth Health University of Auckland Auckland New Zealand