Application of High-Resolution Ultrasonography for Synovitis of Knee, E lbow, Wrist joints in Rheumatoid Arthritis Xiao ying, Zhang-guiying , Zuo-xiaoxia ,Luohui You -yunhui XiangYa hospital of central south University, Xiangya Road 87#. Hnnan Changsha , P.R.china, 410008……