1. Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford OX3 7LT, UK
2. Shoklo Malaria Research Unit, Mahidol Oxford Tropical Medicine Research Unit, 68/30 Bantung Road, PO Box 46, Mae Sot, Tak 63110, Thailand
3. Health and Justice Team, Health Improvement Directorate, Public Health England, 60 Caversham Road, Reading RG1 7EB, UK
4. Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford OX3 7JX, UK
5. Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Bangkok 10400, Thailand