CD8A and neoplasm: Regarding the immune infiltration, the CD8 density in the tumor center was associated with an improved TTR (stratified Wald p-value = 0.0063): the high CD8-ct infiltration group had a median TTR of NR versus 17.7 months in the CD8-ct low group (HR = 0.41; 95% CI = 0.22–0.78).