Stock Photo - illustration of the knee joint, showing a healthy knee (left) and a knee suffering from rheumatoid arthritis (right), with a deterioration of the bone surface and cartilage, thickening of the synovial membrane, effusion of the synovial fluid and inflammation.

Stock Photo: illustration of the knee joint, showing a healthy knee (left) and a knee suffering from rheumatoid arthritis (right), with a deterioration of the bone surface.

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