3Munoz N, Kato I, Bosch FX et al. Risk tactors for HPV DNA detection in middle -aged women [J]. Sex Transm Dis, 1996, 23 (6) : 504.
4Koutsky L Epidemiology of genital human papillomavirus infection [J] .AmJMed, 1997, 102 (SA): 3.
5Habel LA, Van Den Eeden SK, Sherman KJ et al. Risk factors for incident and recurrent condylomata acuminata among women. A population based study [J] . Sex Transm Dis, 1998, 25 (6) : 285.
6Schneider A. Pathogenesis of genital HPV infection [J] . Genitourin Med, 1993, 69 (3): 165.
8Figuerou JP, Ward E, Luthi TE et al. Prevalence of human papillomavirus among STD clinic attenders in Jamaica: association of younger age and increased sexual activity [J] . Sex Trmlsm Dis, 1995, 22 (2) : 114.
9Einstein MH, Goldberg GL. Human papillomavirus and cervical neoplasia [J] . Cancer Invest, 2002, 20 (7 -8) : 10801.
10Lengauer, Kinzler KW, Vogelstein B. Ceneticin stabilities in human cancers [J]. Nature, 1998, 396 (6712): 643.