1. Discipline of Clinical Pharmacology, University of Newcastle, Newcastle, NSW.
2. Department of Clinical Toxicology and Pharmacology, Calvary Mater Newcastle, Newcastle, NSW.
3. Centre for Clinical Research in Emergency Medicine, Western Australian Institute for Medical Research, Royal Perth Hospital and University of Western Australia, Perth, WA.
4. Emergency Department, Princess Alexandra Hospital, Brisbane, QLD.
5. Emergency Department, Royal Perth Hospital, Perth, WA.
6. Emergency Department and Victorian Poisons Information Centre, The Austin Hospital, Melbourne, VIC.
7. NSW Poisons Information Centre, Sydney Children's Hospital Network, Sydney, NSW.
8. Professorial Medicine Unit, University of New South Wales, Sydney, NSW.