1. Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
2. Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
3. Department of Plastic Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
4. Department of Radiology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan Province, China
5. Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Ji’nan, Shandong, China