1 Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Lab of Walk Again Project (WAP), Translational Research Center for Brain-inspired Intelligence, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; National Center for Neurological Disorders, Beijing 100053, China.
2 Department of Neurobiology, Duke University, Durham 27708, USA; International Institute for Neurosciences of Natal - Edmond and Lily Safra, Nata 59280-000, Brazil.
3 Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Lab of Walk Again Project (WAP), Translational Research Center for Brain-inspired Intelligence, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; National Center for Neurological Disorders, Beijing 100053, China; Beijing Municipal Geriatric Medical Research Center, Beijing 100053, China. Electronic address: ggzhao@vip.sina.com.