KCNQ1OT1 and esophageal squamous cell carcinoma: Pearson’s correlation analysis revealed a positive relationship between the KCNQ1OT1 and EGFR mRNA expression levels, a negative correlation between the KCNQ1OT1 and miR-133b expression levels, and a negative correlation between the EGFR mRNA and miR-133b expression levels in ESCC tissues (Figure 1H-J).