1. The Third Ward of Orthopaedic Department, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China
2. Institute of Osteoarthropathy, Ningxia Key Laboratory of Clinical and Pathogenic Microbiology, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China
3. First Clinical Medical School, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, P.R. China