title: Non-invasive prenatal testing offered as part of a combined first-trimester screening program identifies tetrasomy 18p in a high-risk pregnancy.
authors.affiliation: Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark.
authors.forename: Dorte Launholt
authors.initials: DL
authors.lastname: Lildballe
authors.affiliation: Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark.
authors.forename: Ida
authors.initials: I
authors.lastname: Vogel
authors.affiliation: Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark.
authors.forename: Ida Charlotte Bay
authors.initials: IC
authors.lastname: Lund
authors.affiliation: Department of Obstetrics and Gynecology, Regional Hospital Randers, Randers, Denmark.
authors.forename: Inger
authors.initials: I
authors.lastname: Stornes
authors.affiliation: Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark.|Department of Pathology Aarhus, University Hospital, Aarhus, Denmark.
authors.forename: Mette Warming
authors.initials: MW
authors.lastname: Jørgensen
authors.affiliation: Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark.
authors.forename: Else Marie
authors.initials: EM
authors.lastname: Vestergaard
mesh_terms: D000328:Adult; D000649:Amniocentesis; D000782:Aneuploidy; D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood; D025063:Chromosome Disorders / Q000175:diagnosis* / Q000235:genetics; D002887:Chromosomes, Human, Pair 18 / Q000235:genetics; D004247:DNA / Q000097:blood / Q000235:genetics*; D005260:Female; D006801:Humans; D048208:Nuchal Translucency Measurement; D010446:Peptide Fragments / Q000097:blood; D016133:Polymerase Chain Reaction; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D018566:Pregnancy, High-Risk; D011266:Pregnancy-Associated Plasma Protein-A / Q000378:metabolism; D011296:Prenatal Diagnosis
chemical_list: D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments; C063554:urinary gonadotropin fragment; D004247:DNA; D011266:Pregnancy-Associated Plasma Protein-A; C579283:PAPPA protein, human