Vitamin a deficiency and xerophthalmia : report of a Jont WHO/USAID Meeting.
- Geneva : World Health Organization, 1976.
- 88 p. : ill.
- �echnical report series / World Health Organization ; no. 590. .
- Technical report series (World Health Organization) ; no. 590. .
9241205903
88991046
Vitamin A deficiency.
Xerophthalmia.
9241205903
88991046
Vitamin A deficiency.
Xerophthalmia.