ZEB1 and esophageal squamous cell carcinoma: To further explore the underlying role of ZEB1‐AS1 and ZEB1 in TNM staging, lymph node metastasis and prognosis in ESCC, qRT‐PCR was used to analyse the associations of ZEB1‐AS1 and ZEB1 with TNM staging, lymph node metastasis and prognosis in ESCC.