title: Neural tube abnormalities.
authors.forename: K
authors.initials: K
authors.lastname: Nicolaides
authors.forename: J
authors.initials: J
authors.lastname: Campbell
mesh_terms: D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D016136:Spina Bifida Occulta / Q000175:diagnosis*; D014463:Ultrasonography