1. Division of Nutritional Sciences, Cornell University, Ithaca, NY
2. UNICEF, Zanzibar, Tanzania
3. Communicable Diseases Prevention and Control, World Health Organization, Geneva, Switzerland
4. Department of International Health, School of Hygiene and Public Health, The Johns Hopkins University, Baltimore, MD
5. Public Health Laboratory Ivo de Carneri, Wawi, Chake Chake, Pemba Island, Zanzibar, Tanzania
6. Ivo de Carneri Foundation, Milan, Italy