title: Chorionic villus sampling and randomisation.
authors.forename: C J
authors.initials: CJ
authors.lastname: Rowbotham
authors.forename: M A
authors.initials: MA
authors.lastname: Hulten
authors.forename: W E
authors.initials: WE
authors.lastname: MacKenzie
authors.forename: J R
authors.initials: JR
authors.lastname: Newton
mesh_terms: D000328:Adult; D002824:Chorionic Villi; D002869:Chromosome Aberrations / Q000175:diagnosis*; D025063:Chromosome Disorders; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis; D011897:Random Allocation