The rheumatoid variants.
D001168:Arthritis / Q000150:complications / Q000000981:diagnostic imaging*; D016918:Arthritis, Reactive / Q000000981:diagnostic imaging*; D003093:Colitis, Ulcerative / Q000150:complications; D006801:Humans; D011565:Psoriasis / Q000150:complications; D011859:Radiography; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging*