1. Estimates of worldwide burden of cancer in 2008: GLOBOCAN 2008;Ferlay;Int. J. Cancer,2010
2. Cervical Cancer;National Institutes of Health;NIH Consens. Statement,1996
3. U.S. Cancer Statistics Working Group, United States Cancer Statistics: 1999–2014 Incidence and Mortality Web-based Report, Department of Health and Human Services, Centers for Disease Control and Prevention, and National Cancer Institute, Atlanta (GA). http://www.cdc.gov/uscs, (Accessed July 10 2017).