1 Department of Emergency Medicine, Gold Coast University Hospital, Gold Coast, Queensland, Australia; School of Medicine, Bond University, Gold Coast, Queensland, Australia; School of Medicine, Griffith University, Gold Coast, Queensland, Australia.
2 School of Clinical Science at Monash Health, Monash University Faculty of Medicine Nursing and Health Sciences, Melbourne, Victoria, Australia.
3 Department of Respiratory Medicine, The Cairns Hospital, Cairns, Australia.
4 Department of Emergency Medicine, Royal Hobart Hospital, Hobart, Tasmania, Australia.