CD3+, CD8+, and CD4+ T lymphocytes have a significant association with the level of tumor infiltration, which can also be related to the menopausal status, estrogen receptor (ER) status, Ki67 index, white blood cell (WBC) count, platelet count (PLT), lactate dehydrogenase (LDH), and CA153 in high-grade serous OC [39]. The gene discussed is CD8A; the disease is neoplasm.