Assessment of Xerophthalmia and The Mass Vitamin A Prophylaxis Program in El Salvador (September 1973-December 1974)
- 1 June 1976
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Tropical Pediatrics
- Vol. 22 (3) , 135-148
- https://doi.org/10.1093/tropej/22.3.135