1. Department of Spine Surgery, Inner Mongolia People’s Hospital, Hohhot, Inner Mongolia, China
2. Department of Orthopedics and Traumatology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan China
3. Department of International Medical Center, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
4. Department of Spine Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China