1. Centre for Health Informatics, Biostatistics and Epidemiology, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
2. Centre for Health Informatics, Computing and Statistics, Lancaster University Medical School, Lancaster, UK
3. Department of Public Health, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
4. Department of Parasitology, University of Kelaniya, Ragama, Sri Lanka
5. Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
6. South Asian Clinical Toxicology Research Collaboration, University of Peradeniya, Peradeniya, Sri Lanka
7. Clinical Toxicology Research Group, University of Newcastle, Waratah, Australia
8. Addiction Medicine, Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, Australia
9. Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK