4Clifford GM, Smith JS, Plummer M, et al. Human papillomavirus types in invasive cancer worldwide: a meta-analysis[ J]. Br J cancer, 2003, 88(2): 63-73.
5Clifford GM, Gallus S, Herrero R, et al. Worldwide distribution of human papillomavirus types in cytologically normal women in the international agency for research on cancer HPV prevalence surveys : a pooled analysis[ J]. Lancet, 2005,366 : 991-998.
6Sankaranarayanan R, Nene BM, Shastri SS, et al. HPV screening for cervical cancer in rural India[J]. N Engl J Med, 2009, 360 : 1385-1394.
7Schlecht NF, Kulaga S, Robitaille J, et al. Persistent human papiUomavirus Infection as a predictor of cervical Intraepithelial neoplasia[ J]. JAMA, 2001,286: 3106-3114.
8Parkin DM,Bray F, Ferlay J, et al. Global cancer statistics, 2002. CA Cancer J Clin, 2005,55 (2) : 74-108.
10WalboomersJM, Jacobs MV, Manos MM, et al. Human paplUomavlrus is a necessary cause of invasive cervical cancer worldwide. J Pathol, 1999,189 ( 1 ) : 12-19.
1Perkins RB, Langrish SM, Stern LJ,et al. effectiveness of cervi- cal cancer screening in developing countries: the case of Hondu- ras[J]. Womens Health Issues,2010, 20( 1 ) :35-42.
