title: Blood test for Down's syndrome is safe and effective, say researchers.
authors.affiliation: London.
authors.forename: Mathew
authors.initials: M
authors.lastname: Limb
mesh_terms: D004247:DNA / Q000097:blood*; D004314:Down Syndrome / Q000175:diagnosis* / Q000235:genetics; D005260:Female; D006403:Hematologic Tests; D006801:Humans; D061214:Patient Safety; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*
chemical_list: D004247:DNA