[1] Queensland Univ Technol, Sch Publ Hlth & Social Work, Kelvin Grove, Qld 4059, Australia
[2] Univ Queensland, Sch Med, Herston, Qld 4006, Australia
[3] Royal Brisbane & Womens Hosp, Dept Emergency Med, Herston, Qld 4006, Australia
[4] Gold Coast Hosp, Dept Emergency Med, Southport, Qld 4215, Australia
[5] Griffith Univ, Menzies Hlth Inst Queensland, Sch Nursing & Midwifery, Griffith Hlth Ctr, Gold Coast Campus, Griffith, Qld 4222, Australia
[6] Griffith Univ, Gold Coast Campus, Griffith, NSW 4222, Australia
[7] Metro North Hosp Hlth Serv, Herston Campus, Herston, Qld 4006, Australia
[8] SEHA Abu Dhabi Hlth Serv, POB 109090, Abu Dhabi, U Arab Emirates