The risk of recurrence after two children with central-nervous-system malformations.
D000757:Anencephaly / Q000453:epidemiology* / Q000235:genetics*; D003376:Counseling; D004739:England; D005053:Eugenics; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D016135:Spinal Dysraphism / Q000453:epidemiology* / Q000235:genetics*; D014852:Wales