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World Health Organization ,  [Guideline : vitamin A supplementation in infants and children 6-59 months of age]

World Health Organization ,  United States. Agency for International Development ,  Helen Keller International ,  International Vitamin A Consultative Group ,  United Nations Children's Fund (‎UNICEF)‎ ,  Prevenci'on y tratamiento de la carencia de vitamina A y de la xeroftalm'ia : informe de una Reuni'on Conjunta OMS/UNICEF/ADI/Hellen Keller International/IVACG [Yakarta, 13-17 de octubre de 1980]

World Health Organization ,  United States. Agency for International Development ,  Helen Keller International ,  International Vitamin A Consultative Group ,  United Nations Children's Fund (‎UNICEF)‎ ,  [Control of vitamin A deficiency and xerophthalmia : report of a Joint WHO/UNICEF/USAID/Helen Keller International/IVACG Meeting [held in Jakarta from 13 to 17 October 1980]]

World Health Organization ,  [Serum retinol concentrations for determining the prevalence of vitamin A deficiency in populations, Concentrations sériques en rétinol pour déterminer la prévalence de la carence en vitamine A dans les populationsConcentraciones en suero de retinol para establecer la prevalencia de la carencia de vitamina A a escala poblacional]

World Health Organization ,  [Distribution of vitamin A during national immunization days / Department of Vaccines and other Biologicals and Department of Nutrition for Health Development, Field guide for supplementary activities aimed at achieving polio eradication]

World Health Organization ,  [Distribution of vitamin A during national immunization days / Department of Vaccines and other Biologicals and Department of Nutrition for Health Development, Field guide for supplementary activities aimed at achieving polio eradication]

Joint WHO/USAID Meeting on Vitamin A Deficiency and Xerophthalmia (1974: Jakarta, Indonesia) ,  World Health Organization ,  United States. Agency for International Development ,  [Vitamin A deficiency and xerophthalmia : report of a Joint WHO/USAID Meeting [held in Jakarta from 25 to 29 November 1974]]

World Health Organization ,  [Guideline : vitamin A supplementation in infants and children 6-59 months of age]

Joint WHO/USAID Meeting on Vitamin A Deficiency and Xerophthalmia (1974: Jakarta, Indonesia) ,  World Health Organization ,  United States. Agency for International Development ,  [Vitamin A deficiency and xerophthalmia : report of a Joint WHO/USAID Meeting [held in Jakarta from 25 to 29 November 1974]]