1. Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, People's Republic of China.
2. The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu Province, People's Republic of China.
3. Jiangsu Key Laboratory for Molecular Medicine, Nanjing, Jiangsu Province, People's Republic of China.
4. Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, Florida.
5. Jiangsu Provincial Stem Cell Engineering Research Center, Taizhou, Jiangsu Province, People's Republic of China.