title: Absence of expression of Ia antigen on human cytotoxic T cells.
mesh_terms: D000818:Animals; D000918:Antibody Specificity; D003602:Cytotoxicity, Immunologic; D000949:Histocompatibility Antigens Class II; D006801:Humans; D007959:Lymphocyte Culture Test, Mixed; D011817:Rabbits; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology*
chemical_list: D000949:Histocompatibility Antigens Class II