1. Department of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
2. Department of Orthopedics and Traumatology, Wuxi Hospital of Chinese Medicine, Wuxi, Jiangsu 214001, P.R. China
3. Department of Orthopedics and Traumatology, Suzhou Hospital of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
4. Department of Science and Education, Xuyi People's Hospital, Huaian, Jiangsu 211700, P.R. China