title: Progress in screening for neural tube defects.
mesh_terms: D000293:Adolescent; D000653:Amniotic Fluid / Q000032:analysis; D002490:Central Nervous System / Q000196:embryology*; D000013:Congenital Abnormalities / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D000509:alpha-Fetoproteins