1. Department of Spine Surgery, Tianjin Hospital, Tianjin 300211, People’s Republic of China
2. Tianjin Medical University, Tianjin 300070, People’s Republic of China
3. Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, People’s Republic of China
4. Stomatological Hospital of Tianjin Medical University, Tianjin 300070, People’s Republic of China