title: Authors' reply: Noninvasive prenatal testing for trisomy 21: when counselling is needed before responding to a survey.
authors.affiliation: Clinical and Molecular Genetics, UCL Institute of Child Health and Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
authors.forename: C
authors.initials: C
authors.lastname: Lewis
authors.forename: M
authors.initials: M
authors.lastname: Hill
authors.forename: C
authors.initials: C
authors.lastname: Silcock
authors.forename: R
authors.initials: R
authors.lastname: Daley
authors.forename: L S
authors.initials: LS
authors.lastname: Chitty
mesh_terms: D001294:Attitude to Health; D003657:Decision Making; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D009035:Mothers / Q000523:psychology*; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000523:psychology*