title: [Comment on the contribution by Benz et al.: Serum screening for Down syndrome in women under 35 years of age with an age independent index].
authors.forename: T
authors.initials: T
authors.lastname: Reynolds
authors.forename: K
authors.initials: K
authors.lastname: Pistorius
authors.forename: K
authors.initials: K
authors.lastname: Spencer
authors.forename: R
authors.initials: R
authors.lastname: John
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood*; D004314:Down Syndrome / Q000097:blood / Q000175:diagnosis / Q000517:prevention & control*; D004964:Estriol / Q000097:blood*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008403:Mass Screening; D008423:Maternal Age; D011237:Predictive Value of Tests; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis; D012016:Reference Values; D000509:alpha-Fetoproteins / Q000378:metabolism*
chemical_list: D006063:Chorionic Gonadotropin; D000509:alpha-Fetoproteins; D004964:Estriol