1. Program in International and Community Nutrition, and Department of Nutrition, University of California, Davis, CA 95616
2. Helen Keller International, Africa Regional Office, BP 29 898, Dakar-Yoff, Senegal
3. Program in International Nutrition, and Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853
4. Nasarawa School Feeding Program, Lafia, Nasarawa State, Nigeria