title: [Occurrence of cleft anomalies and the age, occupation and work conditions of parents].
mesh_terms: D002648:Child; D002971:Cleft Lip / Q000453:epidemiology*; D002972:Cleft Palate / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008423:Maternal Age; D009790:Occupations; D010331:Paternal Age
vernacular_title: Wystepowanie rozszczepów a wiek, zawód i warunki pracy rodziców