1. Department of Orthopedics, Yongchuan Hospital of Chongqing Medical University, Chongqing, PR China
2. Department of Orthopedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
3. Department of Anatomy, and Laboratory of Neuroscience and Tissue Engineering, Basic Medical College, Chongqing Medical University, Chongqing, PR China
4. Chongqing Fifth People’s Hospital, Department of Orthopedics, Chongqing, PR China