1. Spinal Cord Damage Research Center, James J. Peters VA Medical Center, Bronx, New York, USA.
2. Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
3. Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
4. Research and Development, James J. Peters VA Medical Center, Bronx, New York, USA.
5. Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
6. Neurology Service, James J. Peters VA Medical Center, Bronx, New York, USA.
7. Department of Rehabilitative Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA.