1. Third Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000, P.R. China
2. Department of Orthopedics, Suzhou Hospital of Traditional Chinese Medicine, Suzhou, Jiangsu 215000, P.R. China
3. Department of Orthopedics, Jingjiang Chinese Medicine Hospital, Taizhou, Jiangsu 214500, P.R. China