title: Immunoglobulin allotypes in patients with B27 positive ankylosing spondylitis.
mesh_terms: D006680:HLA Antigens / Q000032:analysis*; D015796:HLA-B27 Antigen; D006801:Humans; D007126:Immunoglobulin Allotypes / Q000032:analysis*; D013167:Spondylitis, Ankylosing / Q000276:immunology*
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen; D007126:Immunoglobulin Allotypes