23 patients with rheumatoid arthritis and high rheumatic factors ( mean titres of rheumatic factors 1 : 1 434 ) within a prospective study on the diagnostic and prognostic significance of the rheumatoid vasculitis which was performed together with the research institute for rheumatism moscow underwent examinations for the proof of an extraarticular organ manifestation .
C0003873
rheumatoid arthritis
C0240903
rheumatoid vasculitis