1. Department of Orthopedics, Shuyang Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Suqian Jiangsu 223600, P.R. China
2. Medical College of Soochow University, Suzhou Jiangsu 215123, P.R. China
3. Center of Sports Medicine and Rehabilitation, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215001, P.R. China