Consistent with previous results [30, 40], our data demonstrated that the P450arom expression was upregulated in both the eutopic endometrium and ectopic implants of women with endometriosis compared to those with normal endometria (Supplementary File, in Supplementary Material available online at http://dx.doi.org/10.1155/2016/5791510). The gene discussed is CYP19A1; the disease is endometriosis.