title: [Prenatal screening for Down syndrome: from sequential to combined estimated risk].
authors.affiliation: Service de gynécologie--obstétrique, hôpital Rothschild, APHP, université Paris-VI, France. jean-marie.jouannic@rth.aphp.fr
authors.forename: J-M
authors.initials: JM
authors.lastname: Jouannic
authors.forename: J-L
authors.initials: JL
authors.lastname: Benifla
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood; D004314:Down Syndrome / Q000175:diagnosis* / Q000453:epidemiology; D005260:Female; D006801:Humans; D008423:Maternal Age; D048208:Nuchal Translucency Measurement; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D012307:Risk Factors; D016216:Ultrasonography, Prenatal; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D006063:Chorionic Gonadotropin; D000509:alpha-Fetoproteins