[Cervical cerclage: a modification of the Shirodkar's operation and scoring system of cervical incompetence].
D000026:Abortion, Habitual / Q000517:prevention & control / Q000601:surgery*; D002584:Cervix Uteri / Q000601:surgery*; D005260:Female; D006801:Humans; D008722:Methods; D011247:Pregnancy; D011379:Prognosis; D002581:Uterine Cervical Incompetence / Q000150:complications / Q000601:surgery*