CD8A and cancer: Similarly, CD8+ T-cell infiltrations correlate strongly (r = 0.5~<0.7) with C3AR1 in 11 cancer types (SKCM, SKCM-Primary, SKCM-Metastasis, STAD, BRCA, HNSC, HNSC-HPVneg, LUSC, PAAD, BRCA-Her2, and BRCA-Luminal).