1. International Science and Technology Cooperation Base of Spinal Cord Injury Tianjin Key Laboratory of Spine and Spinal Cord Injury Department of Orthopedics Tianjin Medical University General Hospital 154 Anshan Road, Heping District Tianjin 300052 China
2. College of Electronic Information and Automation Tianjin University of Science and Technology 1038 Dagunan Road Tianjin 300222 China
3. College of Electronic Information and Automation Advanced Structural Integrity International Joint Research Center Tianjin University of Science and Technology 1038 Dagunan Road Tianjin 300222 China
4. Department of Spine Surgery Tianjin Union Medical Center 190, jieyuan Road, Hongqiao District Tianjin 300121 China