1. Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
2. Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA
3. Shaanxi University of Traditional Chinese Medicine, Xian Yang, China
4. Department of Radiology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, China