1. Clinical Toxicology Unit & Emergency Department, Prince of Wales Hospital, Sydney, New South Wales, Australia
2. New South Wales Poisons Information Centre, Sydney, Australia
3. Clinical Toxicology Research Group, University of Newcastle, Newcastle, Australia
4. Department of Clinical Toxicology, Calvary Mater Newcastle, Newcastle, Australia
5. Clinical Toxicology Unit, Princess Alexandra Hospital, Brisbane, Australia
6. Queensland Poisons Information Centre, Brisbane, Australia
7. Faculty of Medicine and Health, University of Sydney, Sydney, Australia