Figure 2. CXC-motif chemokine ligand (CXCL) expression in head and neck squamous cell carcinoma (HNSC). (A) Differential scatter diagram of CXCL expression in HNSC: red, upregulated; green, downregulated. (B) Differential box plot of CXCL expression in HNSC. *p < 0.05.