TP53 and breast cancer: Of these, because several articles reported more than one locus and study, 99 studies (including 43,951 BC cases and 48,479 controls) described TP53 codon 72 polymorphism, 35 studies (including 8,705 BC cases and 7,516 controls) on IVS3 16 bp polymorphism, and 25 studies (including 12,222 BC cases and 12,895 controls) belong to IVS6+62A > G polymorphism.