title: Cervical length assessment in twin pregnancies using transvaginal ultrasound.
authors: Aberdeen Maternity Hospital, Aberdeen, Scotland.
authors: S
authors: S
authors: Ong
authors: A
authors: A
authors: Smith
authors: N
authors: N
authors: Smith
authors: D
authors: D
authors: Campbell
authors: A
authors: A
authors: Wilson
mesh_terms: D000328:Adult; D002584:Cervix Uteri / Q000000981:diagnostic imaging* / Q000502:physiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D007752:Obstetric Labor, Premature / Q000175:diagnosis; D011237:Predictive Value of Tests; D011247:Pregnancy; D011272:Pregnancy, Multiple / Q000502:physiology*; D014427:Twins; D014463:Ultrasonography; D014621:Vagina