title: Screening tests for vitamin A deficiency.
mesh_terms: D001800:Blood Specimen Collection; D002648:Child; D005260:Female; D006801:Humans; D007194:India; D008297:Male; D008403:Mass Screening / Q000379:methods*; D012395:Rose Bengal; D012423:Rural Health; D014802:Vitamin A Deficiency / Q000453:epidemiology*; D014985:Xerophthalmia / Q000453:epidemiology
chemical_list: D012395:Rose Bengal