Abortion and the incompetent cervix.
D000026:Abortion, Habitual / Q000453:epidemiology* / Q000209:etiology; D000032:Abortion, Therapeutic / Q000150:complications; D003475:Curettage / Q000009:adverse effects; D005260:Female; D006801:Humans; D011247:Pregnancy; D012189:Retrospective Studies; D002577:Uterine Cervical Diseases / Q000150:complications* / Q000601:surgery