Incidence and recurrence risk of common congenital malformations in Budapest in the sixties.
D000013:Congenital Abnormalities / Q000453:epidemiology* / Q000235:genetics; D003241:Consanguinity; D004196:Disease Outbreaks / Q000453:epidemiology; D005260:Female; D006801:Humans; D006815:Hunger; D008297:Male; D012008:Recurrence; D012042:Registries; D012737:Sex Factors