1. Office of the Pesticide Registrar, Government Department of Agriculture, Peradeniya, Sri Lanka
2. South Asian Clinical Toxicology Research Collaboration, Department of Clinical Medicine, University of Colombo, Colombo, Sri Lanka
3. Centre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
4. Clinical Pharmacology and Toxicology, Australian National University Medical School, Canberra, Australian Capital Territory, Australia