1. Department of Neurosurgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
2. Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China
3. Zhongsai Stem Cell Genetic Engineering Co., Ltd., Sanmenxia, Henan Province, China
4. Department of Neurology, Fu Xing Hospital, Capital Medical University, Beijing, China