2010 Rheumatoid arthritis classification criteria: An American ...2010 Rheumatoid arthritis classification criteria: An American College of Rheumatology/European League Against Rheumatism collaborative initiativeJohns Hopkins Arthritis provides clinical classification criteria ...Johns Hopkins Arthritis provides a list of currently accepted criteria for classification, management, and definition of rheumatoid arthritis, osteoarthritis ...ACR Criteria - American College of Rheumatology (ACR) Criteria ...The improvement in rheumatoid arthritis patients is judged using ACR criteria during clinical trials. ACR criteria is expressed as ACR 20, ACR 50, ACR 70.