1. Department of Neurology University of Pennsylvania Philadelphia PA 19104 USA
2. Center of Neuroengineering and Therapeutics University of Pennsylvania Philadelphia PA 19104 USA
3. Center for Neurotrauma Neurodegeneration, and Restoration Corporal Michael J. Crescenz Veterans Affairs Medical Center Philadelphia PA 19104 USA
4. Department of Bioengineering University of Pennsylvania Philadelphia PA 19104 USA
5. Department of Orthopedic Surgery University of Pennsylvania Philadelphia PA 19104 USA
6. The BioRobotics Institute Scuola Superiore Sant'Anna 56025 Pisa Italy
7. Department of Excellence in Robotics & AI Scuola Superiore Sant'Anna 56025 Pisa Italy
8. Department of Biomedical Engineering University of Texas at Austin Austin TX 78712 USA
9. Bertarelli Foundation Chair in Translational Neuroengineering Center for Neuroprosthetics and Institute of Bioengineering École Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
10. Department of Physical Medicine and Rehabilitation University of Pennsylvania Philadelphia PA 19104 USA