1. MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
2. Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK
3. Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Global Health, London School of Hygiene & Tropical Medicine, London, UK
4. Wits Donald Gordon Medical Centre, Johannesburg, South Africa
5. Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
6. Department of Health Science, University of York, York, UK
7. Makerere University College of Health Sciences, Kampala, Uganda