Rheumatoid Arthritis
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Rheumatoid arthritis (RA) is an autoimmune disease affecting many people in the United States. It is estimated that 2.1 million people have this condition (http://www.niams.nih.gov/hi/topics/arthritis/rahandout.htm). Rheumatoid arthritis causes stiffness, pain, swelling, redness, and tenderness in the joints. Most of the time, rheumatoid arthritis affects the wrists, fingers, knees, and ankles. Generally, there is a symmetrical pattern with RA...