Rheumatoid arthritis and tuberculosis.
D001172:Arthritis, Rheumatoid / Q000276:immunology*; D006684:HLA-DR Antigens / Q000032:analysis; D015804:HLA-DR4 Antigen; D006801:Humans; D009169:Mycobacterium tuberculosis / Q000276:immunology*
D006684:HLA-DR Antigens; D015804:HLA-DR4 Antigen