1. Research Institute of Orthopaedics & Traumatology, Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
2. Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
3. Clinical Research Centre, Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, P.R. China