**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.