CD8A and neoplasm: The infiltrating CD8+ T cells in tumor parenchyma appeared to be related to the TMB level, as TMB‐H (≥10 mutations per megabase, muts/Mb) samples exhibited a significantly higher prevalence of CD8+ T cells than TMB‐L (<10 muts/Mb) samples (p‐value = 0.002, Figure 4a).