Rheumatoid arthritis is considered an autoimmune disease, a disease where the body attacks healthy cells. The exact cause is unknown.
2
类风湿关节炎是一种病因不明的自身免疫性疾病，多发于中年女性，由于病因病机复杂，尚无根治之法。
Rheumatoid arthritis is an unknown etiology autoimmune diseases, multiple middle-aged women, the cause of the disease complicated machine, no cure for the problems.
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