Infection in the aetiology of rheumatoid arthritis.
D000937:Antigen-Antibody Reactions; D001172:Arthritis, Rheumatoid / Q000209:etiology* / Q000276:immunology; D001327:Autoimmune Diseases; D001424:Bacterial Infections / Q000150:complications; D005490:Focal Infection / Q000150:complications; D006801:Humans; D006968:Hypersensitivity, Delayed; D007239:Infections / Q000150:complications; D007271:Injections, Intradermal; D009175:Mycoplasma Infections / Q000150:complications; D013582:Synovial Fluid; D014777:Virus Diseases / Q000150:complications