For this study, we selected a set of 10 TSGs (APC, CCNA, CDH1, CDH13, DAPK1, FHIT, RARB, SLIT2, TIMP3, and WIF1) that, based on a survey of the literature, had previously been shown to be targets for aberrant DNA methylation in cervical cancer but not comprehensively tested using quantitative methods. This evidence concerns the gene CCNA2 and cervical cancer.