1 Department of Global Health and Population, Harvard T H Chan School of Public Health, Boston, Massachusetts.
2 Department of Global Health and Population, Harvard T H Chan School of Public Health, Boston, Massachusetts; Department of Epidemiology; Department of Nutrition Harvard T H Chan School of Public Health, Boston, Massachusetts.
3 Department of Global Health and Population, Harvard T H Chan School of Public Health, Boston, Massachusetts; Department of Global Health and Social Medicine, Boston, Massachusetts. Electronic address: vikram_patel@hms.harvard.edu.