title: Images in clinical medicine. Ankylosing spondylitis.
authors.affiliation: Singapore General Hospital, 169608 Singapore. jonyoong@yahoo.com
authors.forename: Jon K C
authors.initials: JK
authors.lastname: Yoong
mesh_terms: D000368:Aged; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D010020:Osteonecrosis / Q000150:complications; D011014:Pneumonia / Q000209:etiology; D011859:Radiography; D013131:Spine / Q000000981:diagnostic imaging; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000000981:diagnostic imaging*