[Incidence of congenital malformations in children in our own records].
D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011044:Poland; D012737:Sex Factors; D012923:Social Class
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