GP5 and breast cancer: He et al in 2009 using HPV 16 E6 region TS PCR and Mou et al in 2011 using MY09/MY11 and GP5+/GP6+ primers PCR found that 24 of 50 BC, 1 of 20 normal breast tissue samples and 4 of 62 BC, none of 46 normal breast tissues infected with HPV, respectively [38,40].