1. Kentucky Spinal Cord Injury Research Center, University of Louisville, Louisville, Kentucky, USA.
2. Kosair for Kids School of Physical Therapy, Spalding University, Louisville, Kentucky, USA.
3. Department of Physical Medicine & Rehabilitation, Rutgers New Jersey Medical School, Newark, New Jersey, USA.
4. Kessler Foundation, Newark, New Jersey, USA.
5. Frazier Rehabilitation Institute, University of Louisville Health, Louisville, Kentucky, USA.
6. Department of Neurological Surgery, University of Louisville, Louisville, Kentucky, USA.
7. Department of Bioengineering, University of Louisville, Louisville, Kentucky, USA.
8. Department of Physiology, University of Louisville, Louisville, Kentucky, USA.
9. Pavlov Institute of Physiology, Russian Academy of Sciences, St. Petersburg, Russia.