title: Causes of arthritis.
mesh_terms: D001168:Arthritis / Q000209:etiology* / Q000235:genetics / Q000276:immunology; D001170:Arthritis, Infectious / Q000209:etiology / Q000276:immunology; D001172:Arthritis, Rheumatoid / Q000209:etiology / Q000235:genetics / Q000276:immunology; D002908:Chronic Disease; D004198:Disease Susceptibility; D004781:Environmental Exposure; D015235:HLA-B Antigens / Q000235:genetics; D015796:HLA-B27 Antigen; D006684:HLA-DR Antigens / Q000235:genetics; D015804:HLA-DR4 Antigen; D006801:Humans; D011565:Psoriasis / Q000150:complications; D013167:Spondylitis, Ankylosing / Q000209:etiology* / Q000235:genetics / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D015235:HLA-B Antigens; D015796:HLA-B27 Antigen; D006684:HLA-DR Antigens; D015804:HLA-DR4 Antigen