[Cervical insufficiency].
D000026:Abortion, Habitual / Q000209:etiology*; D000328:Adult; D002584:Cervix Uteri / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008722:Methods; D011247:Pregnancy; D011859:Radiography; D002577:Uterine Cervical Diseases / Q000601:surgery*