title: Ankylosing spondylitis and heterogeneity of HLA-B27.
authors.affiliation: Case Western Reserve University, Cleveland, OH.
authors.forename: M A
authors.initials: MA
authors.lastname: Khan
mesh_terms: D015235:HLA-B Antigens / Q000235:genetics*; D015796:HLA-B27 Antigen; D006801:Humans; D013167:Spondylitis, Ankylosing / Q000235:genetics*
chemical_list: D015235:HLA-B Antigens; D015796:HLA-B27 Antigen