1. Cervical carcinoma and oral contraception;Boyce;Obstet Gynecol,1972
2. Influence of oral contraceptives on the development of cervical dysplasia and carcinoma in situ;Hren;Quadreni di Clin Obstet e Ginec,1978
3. Preliminary analysis of oral contraceptive use and risk of developing premalignant lesions of the uterine cervix;Ory,1977
4. Relationship of oral contraceptives to cervical carcinogenesis;Thomas;Obstet Gynecol,1972
5. A case control study into the possible effects of birth control pills on pre-clinical carcinoma of the cervix;Worth;J Obstet Gynecol Br Commwlth,1972