1. Department of Spine Surgery The First Affiliated Hospital, Sun Yat‐Sen University Guangzhou People’s Republic of China
2. Spinal Cord Injury Center Heidelberg University Heidelberg Germany
3. Department of Anesthesiology The Second Affiliated Hospital of Nanchang University Nanchang People’s Republic of China
4. Department of Thyroid Surgery The Second Affiliated Hospital of Nanchang University Nanchang People’s Republic of China
5. Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology Guangzhou People’s Republic of China