title: Ankylosing spondylitis and regional enteritis.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000150:complications; D003108:Colonic Diseases / Q000150:complications; D003424:Crohn Disease / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D012446:Sacroiliac Joint; D013167:Spondylitis, Ankylosing / Q000150:complications* / Q000000981:diagnostic imaging