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