title: Distributions of current and new first-trimester Down syndrome screening markers in twin pregnancies.
authors.affiliation: Laboratory for Infectious Diseases and Screening, National Institute for Public Health and the Environment, Bilthoven, the Netherlands. wendy.koster@rivm.nl
authors.forename: M P H
authors.initials: MP
authors.lastname: Koster
authors.forename: E J
authors.initials: EJ
authors.lastname: Wortelboer
authors.forename: Ph
authors.initials: P
authors.lastname: Stoutenbeek
authors.forename: G H A
authors.initials: GH
authors.lastname: Visser
authors.forename: P C J I
authors.initials: PC
authors.lastname: Schielen
mesh_terms: D051722:ADAM Proteins / Q000097:blood; D000072199:ADAM12 Protein; D000328:Adult; D015415:Biomarkers / Q000097:blood; D016022:Case-Control Studies; D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood; D004200:Diseases in Twins / Q000097:blood*; D004314:Down Syndrome / Q000097:blood* / Q000175:diagnosis; D005260:Female; D037161:Galectins / Q000097:blood; D005865:Gestational Age; D006801:Humans; D008565:Membrane Proteins / Q000097:blood; D011247:Pregnancy; D011257:Pregnancy Proteins / Q000097:blood; D011261:Pregnancy Trimester, First / Q000097:blood*; D011266:Pregnancy-Associated Plasma Protein-A / Q000378:metabolism; D011296:Prenatal Diagnosis / Q000379:methods*
chemical_list: D015415:Biomarkers; D018997:Chorionic Gonadotropin, beta Subunit, Human; D037161:Galectins; C038195:LGALS13 protein, human; D008565:Membrane Proteins; D011257:Pregnancy Proteins; D051722:ADAM Proteins; D000072199:ADAM12 Protein; C000606480:ADAM12 protein, human; D011266:Pregnancy-Associated Plasma Protein-A