title: Antenatal screening for Down's syndrome.
authors.forename: H
authors.initials: H
authors.lastname: Cuckle
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000097:blood / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000706:statistics & numerical data*