Guidelines for the Eradication of Vitamin A Deficiency and Xerophthalmia, a Report of the International Vitamin A Consultative Group (IVACG) (1976) Available from the Nutrition Foundation, Inc., 489 Fifth Ave., New York, N.Y. 10016, USA.
2.
Sommer, Alfred, Field Guide to the Detection and Control of Xerophthalmia(World Health Organization, Geneva, 1978).
3.
Vitamin A Deficiency and Xerophthalmia, Report of a Joint WHO/USAID Meeting, WHO Tech. Rep. Ser. 590(World Health Organization, Geneva, 1976).
