As happened with ERS2, none of CYP19A1 or aromatase protein related variables was included in final Cox regression model, although one of them passed initial analysis (p<0.200): CYP19A1 tumor tissues p = 0.966, CYP19A1 non-tumor tissues p = 0.810, CYP19A1 tumor/non tumor ratio p = 0.727, aromatase tumor tissues p = 0.240, aromatase non-tumor tissues p = 0.692 and aromatase tumor/non-tumor ratio p = 0.038. Here, CYP19A1 is linked to neoplasm.