title: Ankylosing spondylitis. A disease in search of microbes.
mesh_terms: D006801:Humans; D007709:Klebsiella / Q000276:immunology*; D007710:Klebsiella Infections / Q000276:immunology*; D013167:Spondylitis, Ankylosing / Q000209:etiology* / Q000276:immunology / Q000382:microbiology