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CESC-derived tumor cells produce high levels of CXCL1. (A) Columns represent mean (+ SEM) mRNA expression of the indicated chemokines in tumor cells purified from HPV+ OPSCC and CESC primary samples. (B) The heatmap expresses z scores of relative mRNA expression of the indicated genes in tumor cells purified from HPV+ OPSCC and CESC primary samples. * p < 0.05 (Mann–Whitney U test).
