title: Echogenic yolk sac: a marker for aneuploidy?
authors: Wessex Fetal Medicine Unit, Princess Anne Hospital, Southampton, SO16 5YA, UK. rajeraghav@hotmail.com
authors: R
authors: R
authors: Parasuraman
authors: H M
authors: HM
authors: Liversedge
authors: J
authors: J
authors: Gilg
authors: M J O
authors: MJ
authors: Taylor
mesh_terms: D000782:Aneuploidy; D015415:Biomarkers; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011446:Prospective Studies; D016216:Ultrasonography, Prenatal; D015017:Yolk Sac / Q000000981:diagnostic imaging*
chemical_list: D015415:Biomarkers