
Keywords: Predictive biomarkers; Pathology response; Esophageal cancer; Chemo(radio)therapy; Meta-analysis; ESCC; Esophageal squamous cell carcinoma; AC; Adenocarcinoma; TS; Thymidylate synthase; Bax; Bcl-2-associated X protein; Bcl-2; B-cell lymphoma 2; CYFRA21-1;