title: Influence of triple-marker screen risk versus a priori risk in decision for amniocentesis in women of advanced maternal age.
authors.forename: J P
authors.initials: JP
authors.lastname: Johnson
authors.forename: K
authors.initials: K
authors.lastname: Streets
authors.forename: J
authors.initials: J
authors.lastname: Fitzgerald
authors.forename: J
authors.initials: J
authors.lastname: Priest
authors.forename: M
authors.initials: M
authors.lastname: Vanisko
authors.forename: M
authors.initials: M
authors.lastname: Haag
mesh_terms: D000649:Amniocentesis; D015415:Biomarkers / Q000097:blood*; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis; D012307:Risk Factors
chemical_list: D015415:Biomarkers