For example, Yasuda et al. [6] reported that a high density of CD8+ T lymphocytes in tumor biopsy samples was strongly correlated with the tumor reduction ratio and was an independent factor for achieving a complete response after nCRT; conversely, McCoy et al. [12] found that CD8+ T cells had no significant association with tumor regression grade (TRG). The gene discussed is CD8A; the disease is neoplasm.