title: Evidence for an infectious etiology of rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000209:etiology* / Q000382:microbiology*; D002689:Chlamydia / Q000302:isolation & purification; D002690:Chlamydia Infections; D003353:Corynebacterium diphtheriae / Q000302:isolation & purification; D004165:Diphtheria; D006801:Humans; D007239:Infections; D009174:Mycoplasma / Q000302:isolation & purification; D009175:Mycoplasma Infections; D014777:Virus Diseases