anti-mitochondrial antibodies (AMA) in were assayed in 404 #RA patients & found to positive in 14-26%. Importantly AMA Abs were associated with erosive disease (p<0.05) and interstitial lung disease (p<0.01), independent of CCP or RF https://t.co/ZcrOYr0cWX https://t.co/KvZ3N5IiCB