title: Dividing membrane may not always be helpful in determining placental chorionicity in twin gestations.
authors: D M
authors: DM
authors: Sherer
authors: S A
authors: SA
authors: Smith
mesh_terms: D000328:Adult; D002823:Chorion / Q000000981:diagnostic imaging*; D005321:Extraembryonic Membranes / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D010920:Placenta / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins; D016216:Ultrasonography, Prenatal