1. Clinical Sciences Murdoch Children's Research Institute Melbourne Victoria Australia
2. Department of Women's and Children's Health University of Padova Padova Italy
3. Emergency Department Royal Children's Hospital Melbourne Victoria Australia
4. Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences University of Melbourne Melbourne Victoria Australia
5. Emergency Department Starship Children's Health Auckland New Zealand
6. Departments of Surgery and Paediatrics: Child and Youth Health University of Auckland Auckland New Zealand
7. Emergency Department Perth Children's Hospital Perth Western Australia Australia
8. Divisions of Paediatrics and Emergency Medicine, School of Medicine University of Western Australia Perth Western Australia Australia
9. Emergency Department Children's Hospital Queensland Brisbane Queensland Australia
10. Child Health Research Centre, School of Medicine University of Queensland, Centre for Children's Health Research Brisbane Queensland Australia
11. Emergency Department Women's and Children's Hospital Adelaide South Australia Australia
12. Emergency Department Bristol Children's Hospital Bristol UK
13. Academic Department of Emergency Care University of the West of England Bristol UK
14. Emergency Department Monash Medical Centre Melbourne Victoria Australia
15. Emergency Department Kidzfirst Middlemore Hospital Auckland New Zealand
16. Emergency Department The Children's Hospital at Westmead Sydney New South Wales Australia
17. Emergency Department The Townsville Hospital Townsville Queensland Australia