title: Prenatal screening.
authors.affiliation: Royal Maternity Hospital, Belfast.
authors.forename: J C
authors.initials: JC
authors.lastname: Dornan
authors.forename: M A
authors.initials: MA
authors.lastname: Harper
authors.forename: C A
authors.initials: CA
authors.lastname: Bailie
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000517:prevention & control; D005260:Female; D005333:Fetus / Q000002:abnormalities*; D005820:Genetic Testing / Q000379:methods*; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis / Q000379:methods*; D016216:Ultrasonography, Prenatal / Q000379:methods*