Small biparietal diameter of fetuses with spina bifida: implications for antenatal screening.
D000886:Anthropometry; D005260:Female; D005317:Fetal Growth Retardation; D006801:Humans; D010296:Parietal Lobe / Q000473:pathology*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D016136:Spina Bifida Occulta / Q000175:diagnosis* / Q000473:pathology