Figure 3. CXC-motif chemokine ligand (CXCL) gene expression and mutation analysis in head and neck squamous cell carcinoma (HNSC). (A) CXCL gene expression and mutations in HNSC were analyzed using cBioPortal. (B) The associations among CXCLs in HNSC were analyzed using the cBioPortal database. Darker colors indicate a stronger correlation.