title: Amniotic fluid and maternal serum alpha-fetoprotein determination in neural tube defects.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D000757:Anencephaly / Q000097:blood / Q000175:diagnosis*; D005260:Female; D005326:Fetal Proteins / Q000032:analysis*; D005865:Gestational Age; D006801:Humans; D008403:Mass Screening; D008591:Meningomyelocele / Q000097:blood / Q000175:diagnosis*; D011247:Pregnancy; D011446:Prospective Studies; D011863:Radioimmunoassay; D016135:Spinal Dysraphism / Q000175:diagnosis*
chemical_list: D005326:Fetal Proteins