title: Letter: Levamisole and the immune response.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002986:Clinical Trials as Topic; D006801:Humans; D006968:Hypersensitivity, Delayed; D007111:Immunity, Cellular / Q000187:drug effects*; D007978:Levamisole / Q000494:pharmacology* / Q000627:therapeutic use; D008214:Lymphocytes / Q000276:immunology; D008264:Macrophages / Q000276:immunology; D008875:Middle Aged; D009000:Monocytes / Q000276:immunology; D009369:Neoplasms / Q000188:drug therapy; D009578:Nitrobenzenes; D012882:Skin Tests
chemical_list: D009578:Nitrobenzenes; D007978:Levamisole