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Abstract
Entities: Disease
Mesh: See more » Blindness/prevention & controlDeveloping CountriesHumansHygieneMass ScreeningVitamin A/therapeutic useXerophthalmia/prevention & control
Substances: See more » Vitamin A
Year: 1976 PMID: 1260331 PMCID: PMC1639417
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447