1. Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
2. Institute for Global Health, University College London, UK
3. Department of Sociology, Harvard University, Cambridge, Massachusetts
4. School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
5. Institute at Brown for Environment and Society, Brown University, Providence, Rhode Island
6. Harvard Center for Population and Development Studies, Harvard University, Cambridge, Massachusetts
7. Department of Human and Organizational Development, Peabody College, Vanderbilt University, Nashville, Tennessee
8. Vanderbilt Institute of Global Health, Vanderbilt University Medical Center, Nashville, Tennessee
9. MRC/Wits Rural Public Health and Heath Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
10. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Cambridge, Massachusetts