ACOG criteria set. Cervical cerclage. Number 18, October 1996. Committee on Quality Assessment. American College of Obstetricians and Gynecologists.
D002584:Cervix Uteri / Q000000981:diagnostic imaging / Q000601:surgery*; D000075202:Contraindications; D005260:Female; D006801:Humans; D011247:Pregnancy; D013514:Surgical Procedures, Operative; D014463:Ultrasonography; D002581:Uterine Cervical Incompetence / Q000601:surgery*