1. Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China
2. Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE1 9NH, UK
3. Department of Physiotherapy, Centre for the Rehabilitation of the Paralysed, Savar Union 1343, Bangladesh
4. Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China
5. Rancho Research Institute, Rancho Los Amigos National Rehabilitation Center, Downey, CA 90242, USA
6. Neurorestoration Center, University of Southern California, Los Angeles, CA 90089, USA
7. Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA