title: [Occurrence of ocular defects in children from nursery schools in the Prague districts 1,2,6,7 during 1969-71].
mesh_terms: D001251:Astigmatism / Q000453:epidemiology; D002675:Child, Preschool; D003604:Czechoslovakia; D005128:Eye Diseases / Q000453:epidemiology*; D006801:Humans; D006956:Hyperopia / Q000453:epidemiology; D007223:Infant; D009216:Myopia / Q000453:epidemiology; D012189:Retrospective Studies; D012578:Schools, Nursery
vernacular_title: Výskyt ocních vad u dĕtí v jeslích v Praze v obvodech 1,2,6,7 v letech 1969-71.