Bouman, Katelijne The impact of national prenatal screening on the time of diagnosis and outcome of pregnancies affected with common trisomies, a cohort study in the Northern Netherlands. [electronic resource] - BMC pregnancy and childbirth 01 2017 - 4 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 1471-2393 Standard No.: 10.1186/s12884-016-1203-6 doi Subjects--Topical Terms: AdultChi-Square DistributionChromosome Disorders--diagnosisDown Syndrome--diagnosisFemaleHealth PolicyHumansMass Screening--legislation & jurisprudenceNetherlandsPregnancyPregnancy OutcomePrenatal Diagnosis--methodsRetrospective StudiesTime FactorsTrisomy 13 Syndrome--diagnosisTrisomy 18 Syndrome--diagnosis