1. Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610000, China
2. College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan, 610065, China
3. Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China