title: The individual with ankylosing spondylitis: defining disease status and the impact of the illness.
authors.affiliation: Royal National Hospital for Rheumatic Diseases, Bath.
authors.forename: A
authors.initials: A
authors.lastname: Calin
mesh_terms: D002908:Chronic Disease; D004185:Disability Evaluation; D006801:Humans; D011859:Radiography; D012720:Severity of Illness Index; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging / Q000503:physiopathology*