Relationship of infection to rheumatoid factor in the population.
D000372:Agglutination Tests; D000906:Antibodies; D001437:Bacteriuria / Q000453:epidemiology; D002006:Brucellosis / Q000276:immunology; D006801:Humans; D007239:Infections / Q000097:blood*; D011658:Pulmonary Fibrosis / Q000453:epidemiology; D012217:Rheumatoid Factor / Q000032:analysis*; D012480:Salmonella Infections / Q000453:epidemiology; D012852:Sinusitis / Q000453:epidemiology
D000906:Antibodies; D012217:Rheumatoid Factor