1. Beihang University,School of Engineering Medicine, Beijing Advanced Innovation Center for Biomedical Engineering,Beijing,China
2. Beihang University,School of Biological Science and Medical Engineering, Beijing Advanced Innovation Center for Biomedical Engineering,Beijing,China
3. Beihang University,School Mechanical Engineering and Automation,Beijing,China
4. Capital Medical University,Beijing Shijitan Hospital,Department of Spinal Surgery,Beijing,China