title: Prevention of vitamin A deficiency.
mesh_terms: D000818:Animals; D002675:Child, Preschool; D004032:Diet; D006801:Humans; D007223:Infant; D051381:Rats; D014801:Vitamin A / Q000627:therapeutic use; D014802:Vitamin A Deficiency / Q000517:prevention & control*
chemical_list: D014801:Vitamin A