title: Cervical ultrasonography.
authors.affiliation: Department of Obstetrics and Gynecology, Ohio State University College of Medicine, Columbus, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Iams
mesh_terms: D002584:Cervix Uteri / Q000033:anatomy & histology / Q000000981:diagnostic imaging / Q000503:physiopathology; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000000981:diagnostic imaging / Q000209:etiology / Q000517:prevention & control*; D011247:Pregnancy; D012680:Sensitivity and Specificity; D016216:Ultrasonography, Prenatal; D002581:Uterine Cervical Incompetence / Q000000981:diagnostic imaging*