1. Long-term follow-up of 1121 cases of carcinoma-in-situ;Kolstad;Obstet. Gynecol,1976
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3. Conization as treatment of carcinoma-insitu of the uterine cervix;Ahlgren;Obstet. Gynecol,1975
4. The treatment of cervical intraepithelial neoplasia by cone biopsy;Jones;Am. J. Obstet. Gynecol,1980
5. Conization of the cervix;Miller;Surg. Gynecol. Obstet,1938