1. National Center of Excellence for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, Bronx, New York.
2. Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
3. Department of Physiology, Pontificia Universidad Católica, Santiago, Chile.
4. Centro Interdisciplinario de Neurociencias de Valparaiso, Valparaiso, Chile.
5. Medical Service, James J. Peters VA Medical Center, Bronx, New York.
6. Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
7. Pharmacology and Systems Therapeutics, Icahn School of Medicine at Mount Sinai, New York, New York.