BUB1B and head and neck squamous cell carcinoma: BUB1B expression level was negatively correlated with the CAF infiltration of BRCA, HNSC-HPV + (HPV-associated head and neck squamous cell carcinoma), TGCT, and THYM and endothelium infiltration of BRCA, KIRC, LUAD, STAD, and THYM (Fig. S4D–F).