title: HLA B27 negative ankylosing spondylitis with unusually severe and generalized peripheral arthritis.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000150:complications*; D001172:Arthritis, Rheumatoid / Q000150:complications; D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D015796:HLA-B27 Antigen; D006801:Humans; D013167:Spondylitis, Ankylosing / Q000150:complications* / Q000276:immunology
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen