title: First trimester Down syndrome screening markers in triploidy: a case report.
authors.forename: J
authors.initials: J
authors.lastname: Campbell
authors.forename: H
authors.initials: H
authors.lastname: Cuckle
authors.forename: I
authors.initials: I
authors.lastname: Sehmi
authors.forename: R
authors.initials: R
authors.lastname: Jones
mesh_terms: D000032:Abortion, Therapeutic; D000328:Adult; D015415:Biomarkers / Q000097:blood; D003937:Diagnosis, Differential; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011123:Polyploidy; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011266:Pregnancy-Associated Plasma Protein-A / Q000032:analysis*; D016216:Ultrasonography, Prenatal
chemical_list: D015415:Biomarkers; D011266:Pregnancy-Associated Plasma Protein-A