1. Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine; Curtin University; Perth Western Australia Australia
2. Department of Epidemiology and Preventive Medicine; Monash University; Melbourne Victoria Australia
3. Research and Evaluation; Ambulance Victoria; Melbourne Victoria Australia
4. Discipline of Emergency Medicine; The University of Western Australia; Perth Western Australia Australia
5. Emergency Medicine; Royal Perth Hospital; Perth Western Australia Australia
6. Centre for Clinical Research in Emergency Medicine; Harry Perkins Institute of Medical Research; Perth Western Australia Australia
7. School of Education; Curtin University; Perth Western Australia Australia
8. School of Public Health; Curtin University; Perth Western Australia Australia
9. St John Ambulance (WA); Perth Western Australia Australia
10. Emergency Medicine; St John of God Hospital Murdoch; Perth Western Australia Australia