1. New South Wales Poisons Information Centre, The Children’s Hospital Westmead, Westmead, Australia
2. Sydney Medical School, University of Sydney, Sydney, Australia
3. Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia
4. Department of Emergency Medicine, Nepean Hospital, Penrith, Australia
5. Department of Intensive Care, Lismore Base Hospital, Lismore, Australia
6. NSW Health Pathology, Trace Elements Laboratory, Royal North Shore Hospital, St Leonards, Australia
7. Victorian Poisons Information Centre, Austin Hospital, Heidelberg, Australia