title: Suppressor factors in tumor immunity.
mesh_terms: D000818:Animals; D000936:Antigen-Antibody Complex; D002460:Cell Line; D005354:Fibrosarcoma / Q000276:immunology*; D006023:Glycoproteins / Q000032:analysis; D006825:Hybridomas / Q000276:immunology; D006968:Hypersensitivity, Delayed; D007165:Immunosuppression Therapy; D051379:Mice; D008807:Mice, Inbred BALB C; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*
chemical_list: D000936:Antigen-Antibody Complex; D006023:Glycoproteins