title: Recent advances in obstetrics. Figures on screening for Down's syndrome are inaccurate.
authors.forename: A
authors.initials: A
authors.lastname: Kennard
authors.forename: E
authors.initials: E
authors.lastname: Alberman
authors.forename: M
authors.initials: M
authors.lastname: Gill
mesh_terms: D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000706:statistics & numerical data*; D012680:Sensitivity and Specificity