title: Rheumatology rounds. Ankylosing spondylitis.
mesh_terms: D000328:Adult; D006680:HLA Antigens / Q000032:analysis; D015796:HLA-B27 Antigen; D006801:Humans; D008297:Male; D011859:Radiography; D013167:Spondylitis, Ankylosing / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen