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Pie diagrams indicate the distribution of disease activity according to European League Against Rheumatism (EULAR) criteria in rheumatoid arthritis (RA) patients before and 6 months after therapy with abatacept [cytotoxic T lymphocyte antigen 4-immunoglobulin (Ig) [CTLA-4-Ig]. Severe disease is represented in black, moderate disease in grey and remission or low disease in light grey.
