1. Life Saving Victoria, Melbourne, Victoria; Australia
2. Ambulance Victoria; Melbourne, Victoria, Australia
3. School of Medicine; Deakin University; Melbourne Victoria Australia
4. Surf Life Saving Australia, Sydney, New South Wales; Australia
5. Emergency Department; Monash Medical Centre; Melbourne Victoria Australia
6. Department of Paediatrics; Albury Base Hospital; Albury New South Wales Australia
7. Department of Anaesthesia; St Vincent's Hospital; Melbourne Victoria Australia
8. Intensive Care Unit; University Hospital Geelong, Geelong, Victoria; Australia
9. Department of Infectious Diseases; Austin Hospital; Melbourne Victoria Australia
10. Department of Respiratory Medicine; The Royal Melbourne Hospital; Melbourne Victoria Australia
11. Intensive Care Unit; Austin Hospital; Melbourne Victoria Australia
12. Department of Anaesthesia and Pain Management; The Royal Melbourne Hospital; Melbourne Victoria Australia
13. Department of General Medicine; Austin Hospital; Melbourne Victoria Australia