TY - BOOK ED - Joint WHO/USAID Meeting on Vitamin A Deficiency and Xerophithalmia. TI - Vitamin a deficiency and xerophthalmia: report of a Jont WHO/USAID Meeting T2 - �echnical report series / World Health Organization SN - 9241205903 PY - 1976/// CY - Geneva PB - World Health Organization KW - Vitamin A deficiency KW - Xerophthalmia ER -