[1] Royal Prince Alfred Hosp, Emergency Dept, Camperdown, NSW, Australia
[2] Royal Prince Alfred Green Light Inst, 50 Missenden Rd, Camperdown, NSW 2050, Australia
[3] George Inst Global Hlth, Level 5-1 King St, Newtown, NSW 2042, Australia
[4] Univ Sydney, Fac Med & Hlth, Sydney, NSW, Australia
[5] NSW Inst Trauma & Injury Management, Level 4-67 Albert Ave, Chatswood, NSW 2067, Australia