The correlation of immune infiltration level, inhibitory immune checkpoint, and TIIsno score. (a) The correlation of immune infiltration level and TIIsno score. (b) The correlation of inhibitory immune checkpoint and TIIsno score. (c) The differences of tumour immune infiltrating cells between the two TIIsno score groups. (d-i) The differences of inhibitory immune checkpoints between the two TIIsno score groups. (d) CD274, (e) CTLA4, (f) CD86, (g) CD276, (h) HAVCR2, (i) TIGIT (n=255, Kruskal-Wallis test).