title: Specificity of the HLA class II reactive monoclonal antibody 33.1.
mesh_terms: D000911:Antibodies, Monoclonal / Q000276:immunology*; D000918:Antibody Specificity; D000954:Antigens, Surface / Q000276:immunology; D000939:Epitopes; D006683:HLA-DQ Antigens; D000949:Histocompatibility Antigens Class II / Q000276:immunology*; D006801:Humans; D008214:Lymphocytes / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000954:Antigens, Surface; D000939:Epitopes; D006683:HLA-DQ Antigens; D000949:Histocompatibility Antigens Class II