1. American Cancer Society — Cancer Facts and Figures, 1980;American Cancer Society,1979
2. Uterine cervix cancer;Kessler,1975
3. Relation of cervical cancer to early marriage and childbearing;Christopherson;N Engl J Med,1965
4. Relationship of squamous cell carcinoma of the cervix uteri to squamous cell carcinoma of the penis amoung Puerto Rican women married to men with penile carcinoma;Martinez;Cancer,1969
5. The etiology of squamous carcimoma of the cervix;Coppleson;Obstet Gynecol,1968