title: [Clinical studies on cell mediated immunity of the patients with thoracic esophageal cancer].
mesh_terms: D000368:Aged; D003208:Concanavalin A / Q000494:pharmacology; D004938:Esophageal Neoplasms / Q000276:immunology*; D006801:Humans; D007111:Immunity, Cellular; D008213:Lymphocyte Activation; D008875:Middle Aged
chemical_list: D003208:Concanavalin A