1. Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
2. Clinical College, Jilin University, Changchun, China
3. Department of Orthopaedics, The First Hospital of Jilin University, Changchun, China
4. Pharmacy College, Jilin University, Chuangchun, China
5. Department of Oncology, The First Hospital of Jilin University, Changchun, China