title: A specific helper factor which enhances the cytotoxic response to a syngeneic tumour.
mesh_terms: D000818:Animals; D003602:Cytotoxicity, Immunologic; D007519:Isoantigens / Q000235:genetics*; D008222:Lymphokines / Q000235:genetics / Q000502:physiology*; D008285:Major Histocompatibility Complex; D012515:Mast-Cell Sarcoma / Q000276:immunology*; D051379:Mice; D008970:Molecular Weight; D012513:Sarcoma, Experimental / Q000276:immunology; D013154:Spleen / Q000276:immunology
chemical_list: D007519:Isoantigens; D008222:Lymphokines