title: Serum screening for Down's syndrome. Not adequately validated.
authors.forename: S
authors.initials: S
authors.lastname: Tuck
mesh_terms: D004314:Down Syndrome / Q000517:prevention & control*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods; D012680:Sensitivity and Specificity