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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 ,  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 ,  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]