MKI67 and endometriosis: Analysis revealed the absence of a statistically significant correlation between the expression of Bcl-2 (epithelial or stromal) and Ki-67 (epithelial or stromal) biomarkers and a personal history of endometriosis, previous surgeries for endometriosis or the presence of symptoms (dysmenorrhea, dyspareunia, pelvic pain chronic, or gastrointestinal symptoms).