Division of Nutritional Sciences, Cornell University, Ithaca, New York. Department of Maternal, Newborn, Child and Adolescent Health and Ageing, World Health Organization, Geneva, Switzerland. Department of Nutrition and Food Safety, World Health Organization, Geneva, Switzerland. Department of Dietetics and Nutrition, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, Florida. Hospital de Niños Roberto Gilbert Elizalde, Guayaquil, Ecuador. Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania. Albert R. Mann Library, Cornell University, Ithaca, New York.