Acknowledgements This project was supported by the National Nature Science Foundation of China (no. 30973191), Science and Technology Program of Liaoning Province (no. 2008225004), Peak Medical Construction Special Project of Liaoning Province (no. 2010696), Innovation Team Program of SNS-032 nmr Liaoning Provincial Education Department (no. 2007T180), and Free Researcher Project of Shengjing Hospital (no.200806). References 1. Waggoner SE: Cervical cancer. Lancet 2003, 361:2217–2225.PubMedCrossRef 2. Moscicki AB, Schiffman M, Kjaer S, Villa LL: Chapter 5: updating the natural history of HPV and anogenital cancer. Vaccine 2006,24(suppl

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