title: The role of MHC class I and II antigen expression in immune surveillance against tumors. II. Experimental systems.
mesh_terms: D000818:Animals; D015395:Histocompatibility Antigens Class I / Q000276:immunology*; D000949:Histocompatibility Antigens Class II / Q000276:immunology*; D007157:Immunologic Surveillance; D009374:Neoplasms, Experimental / Q000276:immunology*
chemical_list: D015395:Histocompatibility Antigens Class I; D000949:Histocompatibility Antigens Class II