Figure 7. The expression level of CHRDL1 was associated with the immune infiltration in the tumour microenvironment. (A) Correlation between the relative abundances of 24 immune cells and CHRDL1 expression level. The size of the dots shows the absolute value of Spearman r. The colors represent the P-value. (B–H) The difference of immune cells infiltration level between CHRDL1 high and low expression groups was analyzed by Wilcoxon rank sum test.