Low dose tolerance preventing tumor immunity.
D000818:Animals; D001835:Body Weight; D003601:Cytotoxicity Tests, Immunologic; D007108:Immune Tolerance; D007111:Immunity, Cellular; D012515:Mast-Cell Sarcoma / Q000453:epidemiology / Q000276:immunology* / Q000473:pathology; D051379:Mice; D008807:Mice, Inbred BALB C; D009374:Neoplasms, Experimental / Q000276:immunology / Q000473:pathology