1. Helen Keller International, New York, NY 10010
2. Nutrition and HIV/AIDS Policy, Policy, Strategy and Programme Support Division, World Food Programme, Rome 00148, Italy
3. Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA 21205
4. Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205
5. Department of Ophthalmology, Johns Hopkins University, Baltimore, MD 21205
6. Department of Nutrition, Harvard School of Public Health, Boston, MA 02115
7. Global Alliance for Improved Nutrition, Geneva 1202, Switzerland
8. Helen Keller International Asia Pacific, Dhaka 1212, Bangladesh
9. Sight and Life, DSM, Basel 4002, Switzerland