title: Measuring unconjugated estriol in maternal serum to screen for fetal down syndrome.
authors.forename: H S
authors.initials: HS
authors.lastname: Cuckle
mesh_terms: D000328:Adult; D015415:Biomarkers; D004314:Down Syndrome / Q000097:blood / Q000175:diagnosis*; D004964:Estriol / Q000097:blood*; D005260:Female; D006801:Humans; D009035:Mothers; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis
chemical_list: D015415:Biomarkers; D004964:Estriol