title: Antenatal screening for Down's syndrome. Performance of different markers remains confused.
authors.forename: J E
authors.initials: JE
authors.lastname: Haddow
authors.forename: G J
authors.initials: GJ
authors.lastname: Knight
authors.forename: G E
authors.initials: GE
authors.lastname: Palomaki
mesh_terms: D015415:Biomarkers / Q000097:blood; D006063:Chorionic Gonadotropin / Q000097:blood; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis
chemical_list: D015415:Biomarkers; D006063:Chorionic Gonadotropin