title: Antenatal screening for Down's syndrome.
authors.forename: T M
authors.initials: TM
authors.lastname: Reynolds
mesh_terms: D004314:Down Syndrome / Q000175:diagnosis*; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D011247:Pregnancy; D014463:Ultrasonography / Q000191:economics / Q000706:statistics & numerical data*