title: Inflammation of the ileum in patients with B27-positive reactive arthritis.
mesh_terms: D000293:Adolescent; D000328:Adult; D001170:Arthritis, Infectious / Q000235:genetics*; D002648:Child; D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D015796:HLA-B27 Antigen; D006801:Humans; D007079:Ileitis / Q000235:genetics*; D008297:Male; D008875:Middle Aged
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen