title: Down's syndrome screening.
authors.forename: M
authors.initials: M
authors.lastname: Gill
mesh_terms: D004314:Down Syndrome / Q000453:epidemiology / Q000517:prevention & control*; D005260:Female; D005820:Genetic Testing; D006801:Humans; D011247:Pregnancy; D012307:Risk Factors; D016216:Ultrasonography, Prenatal