ESRG and head and neck squamous cell carcinoma: Further analysis using the UALCAN database showed that ESRG was significantly upregulated in cervical squamous cell carcinoma (CESC), COAD, esophageal carcinoma (ESCA), LUSC, READ, uterine corpus endometrial carcinoma (UCES), head and neck squamous cell carcinoma (HNSC).