1. A new method of operative treatment for habitual abortions in the second trimester of pregnancy;Shirodkar;Antiseptic,1955
2. Cervical cerclage;McDonald;Clin Obstet Gynecol,1980
3. Experience with Shirodkar's operation and postoperative alcohol treatment;Lauerson;Acta Obstet Gynecol Scand,1973
4. Cervical cerclage operation for a dilated cervix;Olatunbosun;Obstet Gynecol,1981
5. Surgical treatment of patients with hour glass shaped or ruptured membranes prior to the twenty-fifth week of gestation;Goodlin;Surg Gynecol Obstet,1987