title: The HLA system and the rheumatic diseases.
mesh_terms: D001168:Arthritis / Q000276:immunology*; D001171:Arthritis, Juvenile / Q000276:immunology; D016918:Arthritis, Reactive / Q000276:immunology; D001172:Arthritis, Rheumatoid / Q000276:immunology; D006680:HLA Antigens / Q000276:immunology*; D015796:HLA-B27 Antigen; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000276:immunology; D006801:Humans; D010489:Periarthritis / Q000276:immunology; D011565:Psoriasis / Q000276:immunology; D013167:Spondylitis, Ankylosing / Q000276:immunology
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II