1. Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
2. Nuffield Department of Population Health, University of Oxford, Oxford, UK
3. Department of Psychiatry, University of Oxford, Oxford, UK
4. School of Population and Global Health, University of Melbourne, Melbourne, Australia
5. Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK