1. Carolina Population Center, University of North Carolina, Chapel Hill, NC
2. Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC
3. USDA–Agricultural Research Service, Western Human Nutrition Research Center, Davis, CA
4. UNC Project, Lilongwe, Malawi
5. School of Public Health, University of Witwatersrand, Parktown, South Africa
6. Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC
7. US CDC, Atlanta, GA
8. School of Medicine, University of North Carolina, Chapel Hill, NC