RHEUMATOID ARTHRITIS Lindi Jiang, Xiaomin Dai Zhongshan Hospital Fudan University ianglindi@medmail.com.cn dai xiaomin @zs-hospitalsh cnLindi Jiang，Xiaomin Dai Zhongshan Hospital Fudan University jianglindi@medmail.com.cn dai.xiaomin@zs-hospital.sh.cn RHEUMATOID ARTHRITIS