1. Department of Medicine, School of Clinical Sciences, Monash University, Victoria, Australia;
2. Victorian Poisons Centre and Austin Toxicology Service, Heidelberg, Australia;
3. Western Sydney Toxicology Service, Sydney, Australia;
4. Discipline of Emergency Medicine, Sydney Medical School, Sydney, Australia;
5. Department of Medicine, Monash Toxicology Service, School of Clinical Sciences at Monash Health, Monash University, Victoria, Australia