1. Adolescent coitus and cervical cancer: association of related events with increased risk;Ritkin;Cancer Res.,1972
2. Cancer of the cervix: A sexually transmitted disease;Sebastian;Am. J. Obstet. Gynecol.,1978
3. Review of the epidemiology of cervical cancer in the Pacific Basin;Lee;National Cancer Institute Monographs,1982
4. Reproductive and sexual risk factors and human papilloma virus infection in cervical cancer among Hong Kong Chinese;Donnan;Int. J. Epidemiol.,1989
5. Seksuell aktivitet;Hylland,1978