Yoo et al. [36,106] demonstrated phosphorylation of signal transduction and activators of transcription factor 3 (STAT3) in eutopic endometrium of infertile women with this disorder, leading to over-expression of the oncogene BCL6 and stabilization of hypoxia-induced factor 1 alpha (HIF-1α). The gene discussed is HIF1A; the disease is Infertility.