title: Distribution of HLA-B27 in patients with juvenile rheumatoid arthritis.
mesh_terms: D001171:Arthritis, Juvenile / Q000276:immunology*; D006680:HLA Antigens / Q000032:analysis*; D006801:Humans; D013167:Spondylitis, Ankylosing / Q000276:immunology
chemical_list: D006680:HLA Antigens