1. Kessler Foundation, West Orange, New Jersey, USA
2. Department of Physical Medicine and Rehabilitation, Rutgers-NJ Medical School, Newark, New Jersey, USA
3. VA RR&D National Center for the Medical Consequences of SCI, James J. Peters VAMC, Bronx, New York, USA
4. Department of Medicine, The Icahn School of Medicine, Mount Sinai, New York, New York, USA
5. Rehabilitation Medicine, The Icahn School of Medicine, Mount Sinai, New York, New York, USA