1. MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
2. Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
3. INDEPTH Network, East Legon, Accra, Ghana
4. Centre for Global Health Research, Umeå University, Umeå, Sweden
5. Department of Population Health, London School of Hygiene and Tropical Medicine, London, UK
6. Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa
7. Department of Global Health and Population
8. Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, MA, USA
9. Harvard Medical School, Harvard University, Boston, MA, USA
10. Departments of Social and Behavioral Sciences and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA