title: Screening for Down's syndrome.
authors.affiliation: Department of Reproductive Physiology, St Bartholomew's Hospital, London, UK.
authors.forename: T
authors.initials: T
authors.lastname: Chard
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood; D004314:Down Syndrome / Q000097:blood / Q000175:diagnosis*; D004964:Estriol / Q000097:blood; D005260:Female; D006801:Humans; D007265:Inhibins / Q000031:analogs & derivatives / Q000097:blood; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis; D012680:Sensitivity and Specificity; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D006063:Chorionic Gonadotropin; D000509:alpha-Fetoproteins; D007265:Inhibins; D004964:Estriol