Affiliation: | 1. Emergency and Trauma Centre, Alfred Hospital, Melbourne, Victoria, Australia;2. Emergency Department, Royal Hobart Hospital, Hobart, Tasmania, Australia;3. School of Medicine, University of Tasmania, Hobart, Tasmania, Australia;4. Emergency Department, Southern District Health Board, Dunedin, New Zealand;5. Dunedin School of Medicine, University of Otago, Dunedin, New Zealand;6. Emergency Department, Modbury Hospital, Adelaide, South Australia, Australia |