1. Laboratory of Neurorehabilitation Engineering, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
2. Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
3. National Research Center for Rehabilitation Technical Aids, Beijing, China
4. Shirley Ryan AbilityLab, Chicago, IL, USA
5. State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China