title: HLA antigens.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000276:immunology*; D006680:HLA Antigens / Q000032:analysis*; D006649:Histocompatibility Antigens / Q000032:analysis*; D006801:Humans; D012216:Rheumatic Diseases / Q000276:immunology*
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens