1. Anal intraepithelial neoplasia: part of a multifocal disease process;Scholefield;Lancet,1992
2. Anal human papillomavirus infection and squamous neoplasia in patients with invasive vulvar cancer;Ogunbiyi;Obstet Gynecol,1994
3. Intraepithelial neoplasia in the anal canal. The appearance and relation to genital neoplasia;Fenger;Acta Pathol Microbiol Immunol Scand A,1986
4. Cancer is a complication of severe immunosuppression;Penn;Surg Gynecol Obstet,1986
5. The invasive potential of carcinoma in situ of the cervix;McIndoe;Obstet Gynecol,1984