1. Department of Public Health, University of Copenhagen, Copenhagen, Denmark
2. Faculty of Medicine, South Asian Clinical Toxicology Research Collaboration (SACTRC), University of Peradeniya, Peradeniya, Sri Lanka
3. Department of Community Medicine, Faculty of Medicine and Allied Sciences, Rajarata University of Sri Lanka, Saliyapura, Sri Lanka
4. Department of Anthropology, University of Copenhagen, Copenhagen, Denmark
5. School of Clinical Sciences and Community Health, The University of Edinburgh, Edinburgh, Scotland
6. Department of Medicine, Faculty of Medicine & Allied Sciences, Rajarata University of Sri Lanka, Saliyapura, Sri Lanka