1. Joint Diseases Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, P. R. China
2. State Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China
3. National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai 200444, P. R. China