title: Prenatal screening for trisomy 18.
authors.forename: T M
authors.initials: TM
authors.lastname: Reynolds
authors.forename: A
authors.initials: A
authors.lastname: Wierzbicki
mesh_terms: D015415:Biomarkers / Q000032:analysis; D006063:Chorionic Gonadotropin / Q000032:analysis; D002887:Chromosomes, Human, Pair 18; D004964:Estriol / Q000032:analysis; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000706:statistics & numerical data*; D014314:Trisomy; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D015415:Biomarkers; D006063:Chorionic Gonadotropin; D000509:alpha-Fetoproteins; D004964:Estriol