Neural-tube defects.
D000032:Abortion, Therapeutic; D004739:England; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011296:Prenatal Diagnosis; D016136:Spina Bifida Occulta / Q000175:diagnosis* / Q000453:epidemiology; D014852:Wales