EWSAT1 and esophageal squamous cell carcinoma: LASSO regression analysis was subsequently carried out to identify lncRNAs that are correlated with the prognosis of ESCC, and 5 CuRLs (AC021321.1, LINC01775, LINC00601, EWSAT1, and AC138696.2) were identified (Figure 3B, 3C).