[1] Prince Wales Hosp, Dept Clin Toxicol, Randwick, NSW, Australia
[2] UNSW Med, Prince Wales Clin Sch, Sydney, NSW, Australia
[3] Univ Newcastle, Dept Clin Toxicol, Calvary Mater Newcastle & Clin Toxicol Res Grp, Callaghan, NSW, Australia
[4] Princess Alexandra Hosp, Clin Toxicol Unit, Brisbane, Qld, Australia
[5] Liverpool Hosp, Emergency Dept, Liverpool, NSW, Australia