title: Lymphocyte transformation to bacterial antigens in ankylosing spondylitis.
mesh_terms: D000328:Adult; D000942:Antigens, Bacterial / Q000276:immunology*; D005260:Female; D006801:Humans; D008213:Lymphocyte Activation; D008297:Male; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000276:immunology*; D015009:Yersinia Infections / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial