1. Department of Emergency Medicine; Royal Children's Hospital; Melbourne Victoria Australia
2. Murdoch Children's Research Institute; Melbourne Victoria Australia
3. Department of Paediatrics, Faculty of Medicine; Dentistry and Health Sciences, The University of Melbourne; Melbourne Victoria Australia
4. Deakin Health Economics, Population Health SRC, Faculty of Health; Deakin University; Melbourne Victoria Australia
5. Department of Emergency Medicine; Princess Margaret Hospital; Perth Western Australia Australia
6. School of Paediatrics and Child Health; The University of Western Australia; Perth Western Australia Australia
7. School of Primary, Aboriginal and Rural Health Care; The University of Western Australia; Perth Western Australia Australia
8. Department of Emergency Medicine; Kidz First Hospital; Auckland New Zealand
9. Department of Emergency Medicine; Lady Cilento Hospital; Brisbane Queensland Australia
10. Queensland Children's Medical Research Institute; Brisbane Queensland Australia
11. Faculty of Medicine; The University of Queensland; Brisbane Queensland Australia
12. Department of Emergency Medicine; Sunshine Hospital; Melbourne Victoria Australia
13. Children's Emergency Department; Starship Children's Hospital; Auckland New Zealand
14. Liggins Institute; The University of Auckland; Auckland New Zealand
15. Department of Anaesthesia; Royal Children's Hospital; Melbourne Victoria Australia
16. Department of Medicine; Royal Children's Hospital; Melbourne Victoria Australia