
Keywords: کارسینوم سلول سنگفرشی مری; DSS; disease-specific survival; ESCC; esophageal squamous cell carcinomas; ESD; endoscopic submucosal dissection; HR; hazard ratio; LNM; lymph node metastasis; LVI; lymphovascular invasion; M1; invasion limited to the intraepithelium; M2; invasion limited