Gupta et al. (2016) published a Cochrane review looking at endometrial biomarkers (e.g., Pro-Gly-Pro (PGP) 9.5, B-cell lymphoma (BCL)-6, integrin β3) in the diagnosis of endometriosis and found that none achieved adequate sensitivity or specificity to replace diagnostic laparoscopy [22]. The gene discussed is BCL6; the disease is endometriosis.