title: Discussion.
mesh_terms: D016208:Databases, Factual / Q000706:statistics & numerical data*; D004938:Esophageal Neoplasms / Q000601:surgery*; D016629:Esophagectomy / Q000706:statistics & numerical data*; D005260:Female; D006761:Hospitals / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D010043:Outcome and Process Assessment, Health Care / Q000706:statistics & numerical data*; D019984:Quality Indicators, Health Care / Q000706:statistics & numerical data*; D012042:Registries / Q000706:statistics & numerical data*