1. Clinical Toxicology Unit; Princess Alexandra Hospital; Brisbane Queensland Australia
2. Paediatric Intensive Care Unit; Lady Cilento Children's Hospital; Brisbane Queensland Australia
3. Clinical Toxicology Unit; Royal Perth Hospital; Perth Western Australia Australia
4. Queensland Poisons Information Centre; Lady Cilento Children's Hospital; Brisbane Queensland Australia
5. Clinical Toxicology Unit; Prince of Wales Hospital and Community Health Services; Sydney New South Wales Australia