5Matsukura T, Sugasc M. Pitfalls in the epidemiologic classification of human papillomavirus types associated with cervical cancer using polymerase chain reaction: driver and passenger [ J ] . Int J Gynecol Cancer, 2008, 18(5): 1042- 1050.
6Schlecht NF, Kulaga S, Robitaille J, et al. Persistent human papillomavirus infection as a predictor of cervical intraepithelial neoplasia. [ J ] . JAMA, 2001, 286(24): 3106- 3114.
7Tomas DB, Ray RM, Qin Q, et al. Risk factors for progression of squamous cell cervical carcinoma in-situ to invasive cervical cancer, results of a multinational study [ J ] . Cancer Causes Control, 2002, 13(7): 683-690.
8Kjellberg I, Hallmans G, Ahren AM, et al. Smoking diet pregnancy and oral contraceptive use as risk factors for cervical intra-epithelial neoplaisa in relation to human papillomavirus infection [ J ] . 2000, 82: 1332-1338.
9Kim J, Kim MK, Lee JK, et al. Intakes of vitamin A, C, and E, and beta-carotene are associated with risk of cervical cancer: a case-control study in Korea [ J ] . Nutr Cancer 2010, 62(2): 181-189.
