1. Tim and Caroline Reynolds Center for Spinal Stimulation, Kessler Foundation, West Orange, New Jersey
2. Department of Physical Medicine and Rehabilitation, Rutgers—New Jersey Medical School, Newark, New Jersey
3. Center for Mobility and Rehabilitation Engineering Research, Kessler Foundation, West Orange, New Jersey
4. Burke Neurological Institute and Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, White Plains, New York