4Peter S, A hn HD, George WR. Human papilloma virns in women. A three- year experience in a country hospitol colposcopy clinic. J Pepord Med, 1992 ; 37 : 167.
5Evander M, Gdlund K, Gu stafsson A, et al. HDV infection is transient in young womean: a popnlation based cohort study. J Infect Dis, 1995;171:1026.
6Ulla H, Astrid KNI, Anne S, et al, Preralence of HPV typesll,16 and 18 in cervical swabs. A stady of 1362 pregnancy women. Fur J Obstet Gynecol Repord Bioll, 1992;35:191.
7Shah K, Kashima H,Polk B F, et al. Rarity of cesarean delivery in cases of jurenile-onstet respiratory papillomatosis. Obstet Gynecol, 1986; 68 : 795.
8Nuova G J.Darfler MM, Im praim CC, et al. 10 ceurrence of multiple types of HPV in genital tract leisions. Am J Pathol,1991;138:53.
9A m strong D K B, Maw RD, D in smore WW, et al, A randomised, donble - blind, paralled group study to compare subcutaneons interferon-alpha- 2a plus podophyllin with placebo plus podophyllin in the treatment of prinary condyloma acum inata genitourin Med 1994,70:389