CD8A and endometriosis: Include: In vitro and in vivo studies of CD8+ T cells in endometriosis related tissues, such as but not limited to peripheral blood, peritoneal fluid, eutopic endometrium and ectopic lesions of patients and animal models with endometriosis.Exclude: Meta-analyses of papers (but not datasets), systematic reviews and other reviews, case reports or case series, and organizational guidelines.