1. Clinical College, Jilin University, Changchun, Jilin 130021, P.R. China
2. Institute of Zoology, China Academy of Science, Beijing 100049, P.R. China
3. Department of Neurosurgery, Cancer Hospital of Sun Yat Sen University, Guangzhou, Guangdong 510060, P.R. China
4. Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
5. Department of Neurosurgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
6. Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China