title: Severe ankylosing spondylitis.
authors.affiliation: Department of Internal Medicine, Faculty of Medicine University of Indonesia-dr Cipto Mangunkusumo Hospital, Jakarta, Indonesia.
authors.forename: Okto
authors.initials: O
authors.lastname: Dewantoro
authors.forename: Indah
authors.initials: I
authors.lastname: Gianawaty
authors.forename: Bambang
authors.initials: B
authors.lastname: Setiyohadi
mesh_terms: D000328:Adult; D002574:Cervical Vertebrae; D006801:Humans; D008159:Lumbar Vertebrae; D008297:Male; D011859:Radiography; D012720:Severity of Illness Index; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging*; D013904:Thoracic Vertebrae