Fig. 3From: Immune infiltrating cells in cholangiocarcinoma may become clinical diagnostic markers: based on bioinformatics analysisCorrelation matrix of 22 immune cell proportions calculated by CIBERSORT software. The X-axis and Y-axis indicate the types of immune cells, and the Z-axis indicates the level of correlation between the two immune cells (red represents the stronger the correlation, and blue represents the lower the correlation)Back to article page