title: Rheumatic disorders in a HLA B27 positive population.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001168:Arthritis / Q000276:immunology; D005260:Female; D006680:HLA Antigens / Q000032:analysis* / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D012216:Rheumatic Diseases / Q000276:immunology*; D012217:Rheumatoid Factor / Q000032:analysis; D012446:Sacroiliac Joint; D012737:Sex Factors; D013167:Spondylitis, Ankylosing / Q000276:immunology; D052256:Tendinopathy / Q000276:immunology; D014606:Uveitis, Anterior / Q000276:immunology
chemical_list: D006680:HLA Antigens; D012217:Rheumatoid Factor