类风湿关节炎是一种慢性全身性自身免疫病，其主要受累部位是滑膜组织和关节软骨。
Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease, which has as its primary target, the synovial tissues and articular cartilage.
你感到虚弱或疲乏吗?类风湿性关节炎的另一种症状就是全身性肌肉疼痛，疲乏，僵硬，类似于流感症状。
Do you feel weak or fatigued? Another symptom of rheumatoid arthritis is general muscle aches, fatigue, stiffness, and flu-like symptoms.
结果表明：幼年类风湿关节炎病人全身型该抗体的阳性率要明显高于多关节型和少关节型，分别为59．3％，28．6％，9．1％。
The result showed: The positive rate in systemic juvenile rheumatoid arthritis(JRA) was much higher than polyarticular and pauciarticular JRA, which was 59.3%, 28.6%, 9.1% respectively.
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