title: [The incidence of congenital heart defects].
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006330:Heart Defects, Congenital / Q000150:complications / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011247:Pregnancy; D012426:Russia
vernacular_title: Chastota vrozhdennykh porokov serdtsa.