title: Population studies in northern Sweden. VIII. Frequencies of congenital malformations by region, time, sex and maternal age.
mesh_terms: D000013:Congenital Abnormalities / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D011159:Population Surveillance; D012737:Sex Factors; D013548:Sweden