The ultrasound diagnosis of fetal neural tube abnormalities.
D000757:Anencephaly / Q000175:diagnosis*; D004677:Encephalocele / Q000175:diagnosis*; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis*; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D014463:Ultrasonography