title: Prenatal cytogenetic screening.
authors.affiliation: Baylor College of Medicine, Houston, Texas 77030.
authors.forename: J L
authors.initials: JL
authors.lastname: Simpson
mesh_terms: D000328:Adult; D000649:Amniocentesis; D006063:Chorionic Gonadotropin / Q000097:blood; D015193:Chorionic Villi Sampling; D004314:Down Syndrome / Q000097:blood / Q000175:diagnosis* / Q000473:pathology; D004900:Erythroblasts / Q000473:pathology; D005260:Female; D005315:Fetal Diseases / Q000097:blood / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D011261:Pregnancy Trimester, First / Q000097:blood; D011262:Pregnancy Trimester, Second / Q000097:blood; D018566:Pregnancy, High-Risk; D011266:Pregnancy-Associated Plasma Protein-A / Q000032:analysis; D011296:Prenatal Diagnosis; D014327:Trophoblasts / Q000473:pathology; D016216:Ultrasonography, Prenatal; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D006063:Chorionic Gonadotropin; D000509:alpha-Fetoproteins; D011266:Pregnancy-Associated Plasma Protein-A