title: Down's syndrome screening in the UK.
authors.forename: K H
authors.initials: KH
authors.lastname: Nicolaides
authors.forename: N J
authors.initials: NJ
authors.lastname: Sebire
authors.forename: R J
authors.initials: RJ
authors.lastname: Snijders
authors.forename: S
authors.initials: S
authors.lastname: Johnson
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000453:epidemiology / Q000517:prevention & control*; D005260:Female; D005820:Genetic Testing; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D016216:Ultrasonography, Prenatal; D006113:United Kingdom / Q000453:epidemiology