title: 'False' lambda sign in monochorionic twin pregnancy.
authors.affiliation: Department of Fetal Medicine, National Maternity Hospital, Dublin, Ireland.
authors.forename: C A
authors.initials: CA
authors.lastname: Walsh
authors.affiliation: Department of Fetal Medicine, National Maternity Hospital, Dublin, Ireland.
authors.forename: M
authors.initials: M
authors.lastname: Wilkinson
authors.affiliation: Department of Pathology, National Maternity Hospital, Dublin, Ireland.
authors.forename: P
authors.initials: P
authors.lastname: Downey
authors.affiliation: Department of Pathology, National Maternity Hospital, Dublin, Ireland.
authors.forename: E E
authors.initials: EE
authors.lastname: Mooney
authors.affiliation: Department of Fetal Medicine, National Maternity Hospital, Dublin, Ireland.
authors.forename: S
authors.initials: S
authors.lastname: Carroll
mesh_terms: D000328:Adult; D000650:Amnion / Q000000981:diagnostic imaging*; D002823:Chorion / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D059285:Pregnancy, Twin; D014430:Twins, Monozygotic; D016216:Ultrasonography, Prenatal