Where have all the spina bifida gone?
D000032:Abortion, Therapeutic; D000757:Anencephaly / Q000175:diagnosis; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011296:Prenatal Diagnosis; D016136:Spina Bifida Occulta / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control*