title: Prenatal chromosome analysis today. Screening by maternal age or serum test?
authors.affiliation: Department of Obstetrics, Helsinki University Central Hospital, Finland.
authors.forename: R
authors.initials: R
authors.lastname: Salonen
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005820:Genetic Testing / Q000379:methods*; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis / Q000379:methods*; D012307:Risk Factors; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D015415:Biomarkers; D000509:alpha-Fetoproteins