GUO Gang Department of Rheuma-tism and Immunity; Hebei Yiling Hospital; Hebei; Shijiazhuang 050091; China;
河北以岭医院风湿免疫科;
泌物（等于rheum）GUO Gang Department of Rheuma-tism and Immunity; Hebei Yiling Hospital; Hebei; Shijiazhuang 050091; China;
河北以岭医院风湿免疫科;
Objective To study the efficacy and safety of leflunomide (LEF) in the treatment of active rheuma-toid arthritis (RA) compared to methotrexate (MTX).
摘要目的研究来
治疗活动期
风湿关节炎的临
疗效和安全
。
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