Epidemiological aspects of Yersinia arthritis.
D001170:Arthritis, Infectious / Q000453:epidemiology* / Q000209:etiology / Q000276:immunology; D005387:Finland; D006801:Humans; D010326:Pasteurella Infections / Q000453:epidemiology* / Q000276:immunology; D012213:Rheumatic Fever / Q000453:epidemiology / Q000276:immunology; D012217:Rheumatoid Factor / Q000032:analysis
D012217:Rheumatoid Factor