title: Definition of medial histocompatibility antigens.
mesh_terms: D000818:Animals; D006084:Graft Rejection; D006649:Histocompatibility Antigens / Q000145:classification*; D051379:Mice; D051381:Rats; D013601:T-Lymphocytes / Q000276:immunology; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology
chemical_list: D006649:Histocompatibility Antigens