title: Antenatal screening for Down's syndrome.
authors.forename: V J
authors.initials: VJ
authors.lastname: Macri
authors.forename: R
authors.initials: R
authors.lastname: Clark
mesh_terms: D003365:Costs and Cost Analysis; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D008403:Mass Screening / Q000191:economics; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000191:economics*