title: Congenital malformations and a world survey.
mesh_terms: D002490:Central Nervous System / Q000002:abnormalities; D002971:Cleft Lip / Q000453:epidemiology; D002972:Cleft Palate / Q000453:epidemiology; D000013:Congenital Abnormalities / Q000453:epidemiology*; D003241:Consanguinity; D004314:Down Syndrome / Q000453:epidemiology; D004812:Epidemiologic Methods; D005260:Female; D006330:Heart Defects, Congenital / Q000453:epidemiology; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple