1. School of Pharmacy; University of Otago; Dunedin New Zealand
2. Dunedin Hospital; Dunedin New Zealand
3. Department of Clinical Toxicology; Calvary Mater Newcastle and School of Medicine and Public Health; University of Newcastle; Newcastle NSW Australia
4. Pharmacology; Sydney Medical School; University of Sydney; Sydney NSW Australia
5. Dunedin School of Medicine; University of Otago; Dunedin New Zealand