1. Spaulding Rehabilitation Hospital, Boston, Massachusetts, USA
2. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA
3. Kessler Institute for Rehabilitation, West Orange, New Jersey, USA
4. Department of Physical Medicine and Rehabilitation, Rutgers New Jersey Medical School, Newark, New Jersey, USA
5. Department of Surgery, Division of Urology, Rutgers New Jersey Medical School, Newark, New Jersey, USA