[Prevalence of hypovitaminosis A in preschool children of a municipality of the metropolitan area of São Paulo, Brazil].
D001938:Brazil; D002338:Carotenoids / Q000097:blood; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009749:Nutrition Surveys; D012494:Sampling Studies; D014801:Vitamin A / Q000097:blood; D014802:Vitamin A Deficiency / Q000453:epidemiology*
D014801:Vitamin A; D002338:Carotenoids
Prevalência de hipovitaminose A em pré-escolares de município da área metropolitana de São Paulo, Brasil.