title: Comment on "combined first trimester screen's ability to detect unexpected chromosome abnormalities".
authors.forename: Heather
authors.initials: H
authors.lastname: Dorsey
authors.forename: Thomas
authors.initials: T
authors.lastname: Jenkins
mesh_terms: D025063:Chromosome Disorders / Q000175:diagnosis*; D002887:Chromosomes, Human, Pair 18; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D014314:Trisomy / Q000175:diagnosis*