Patients were divided into several subgroups based on PD-L1 expression on immune cells (IC0, IC1, and IC2+ subgroups) or tumor cells (TC0, TC1, and TC2+ subgroups) and the infiltration status of CD8 T cells in the TME (deserted, excluded, and inflamed subgroups) [54]. The gene discussed is CD274; the disease is neoplasm.