CDKN2A and cervical cancer: Candidate cervical cancer susceptibility gene variants have been reported in the tumour-suppressor gene TP53 [69,70,71] or the p53 regulating ubiquitin ligase gene MDM2 [70,72,73], and in further DNA damage response or cell cycle genes such as ATM [74], BRIP1 [75], CDKN1A [76,77,78], CDKN2A [79], FANCA, FANCC, and FANCL [80], XRCC1 [81,82,83], or XRCC3 [84].