title: Doppler demonstration of reversed umbilical blood flow in an acardiac twin.
authors.affiliation: Department of Radiology, Harvard Medical School, Brigham and Women's Hospital, Massachusetts 02115.
authors.forename: C B
authors.initials: CB
authors.lastname: Benson
authors.forename: F R
authors.initials: FR
authors.lastname: Bieber
authors.forename: D R
authors.initials: DR
authors.lastname: Genest
authors.forename: P M
authors.initials: PM
authors.lastname: Doubilet
mesh_terms: D000015:Abnormalities, Multiple / Q000196:embryology / Q000503:physiopathology; D000328:Adult; D005260:Female; D006330:Heart Defects, Congenital / Q000196:embryology / Q000503:physiopathology*; D006801:Humans; D011247:Pregnancy; D012039:Regional Blood Flow; D014427:Twins; D014430:Twins, Monozygotic; D014463:Ultrasonography; D014469:Umbilical Arteries / Q000503:physiopathology*; D014471:Umbilical Veins / Q000503:physiopathology*