1. Department of Infections, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
2. Department of Neurosurgery, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
3. Department of Orthopaedics, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China