Correlation between P4HA3 expression and immunity in clinical tissue samples. (A) Representative images of CD4, CD8, Foxp3, PD-1, and PD-L1 staining in normal and tumor tissues. Low magnification field of view: scale bar = 300 μm. High magnification field of view: scale bar = 100 μm. (B) CD4+TILs, CD8+TILs, Foxp3+TILs, PD-1+TILs, and PD-L1+cells infiltration between normal and tumor tissues. (C) CD4+TILs, CD8+TILs, Foxp3+TILs, PD-1+TILs, and PD-L1+cells infiltration between P4HA3 high and low expression groups.