title: Integrated screening for Down's syndrome.
authors.forename: T M
authors.initials: TM
authors.lastname: Jenkins
authors.forename: R J
authors.initials: RJ
authors.lastname: Wapner
mesh_terms: D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis / Q000379:methods*; D012107:Research Design; D012680:Sensitivity and Specificity