1. Department of Stomatology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
2. Department of Neurology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
3. Scientific Research Center, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China