1. Andersch, B. and Milsom, I. (1982) An epidemiologic study of young women with dysmenorrhea. Am. J. Obstet. Gynecol., 144, 655–660.
2. Candiani, G.B., Vercellini, P., Fedele, L. et al. (1992) Conservative surgical treatment of rectovaginal septum endometriosis. J. Gynecol. Surg., 8, 177–180.
3. Cornillie, F.J., Oosterlynck, D., Lauweryns, J.M. et al. (1990) Deeply infiltrating pelvic endometriosis: histology and clinical significance. Fertil. Steril., 53, 978–983.
4. Fedele, L., Parazzini, F., Bianchi, S. et al. (1990) Stage and localization of pelvic endometriosis and pain. Fertil. Steril., 53, 155–158.
5. Fedele, L., Bianchi, S., Bocciolone, L. et al. (1992) Pain symptoms associated with endometriosis. Obstet. Gynecol., 79, 767–769.