title: HLA-B27, Klebsiella and ankylosing spondylitis: biological and chemical studies.
mesh_terms: D000907:Antibodies, Bacterial / Q000276:immunology; D000942:Antigens, Bacterial / Q000276:immunology; D000954:Antigens, Surface / Q000276:immunology; D002462:Cell Membrane / Q000276:immunology; D000939:Epitopes; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D007709:Klebsiella / Q000276:immunology*; D008213:Lymphocyte Activation; D010375:Pedigree; D013167:Spondylitis, Ankylosing / Q000235:genetics / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D000954:Antigens, Surface; D000939:Epitopes; D006680:HLA Antigens