CD8A and cancer: The abundance of TIL-NK cells, TIL-NK T cells, TIL-γδ T cells, and TIL-CD8+ T cells was substantially higher in the high-ligand group than the low-ligand group of the bottom 10% of patients who had less defective genes in most cancers; however, there was no difference between the high-ligand and low-ligand groups of the top 10% of patients who had more defective genes (eTable 8 in the Supplement).