1 Departments of Neurological Surgery and Physical Medicine & Rehabilitation, Applied Physiology Research Laboratory, The Miami Project to Cure Paralysis, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida.
2 Paralysis Rehabilitation and Recovery Program, Spinal Cord Injury Research, MedStar National Rehabilitation Hospital, Washington, DC.
3 Rehabilitation Medicine, Georgetown University Hospital, Washington, DC.
4 Physical Medicine and Rehabilitation, Penn State Milton S. Hershey Medical Center, Penn State College of Medicine, Hershey, Pennsylvania.
5 Spinal Injury Research and Outcomes Assessment Research, Kessler Foundation, West Orange, New Jersey.
6 Department of Physical Medicine & Rehabilitation, Rutgers New Jersey Medical School, Newark, New Jersey.
7 Carolinas Rehabilitation and Carolinas Medical Center, Charlotte, North Carolina.
8 Department of Medicine, Stanford University, Stanford, California.
9 VA Palo Alto Health Care System, Palo Alto, California.
10 VA Boston Health Care System, Boston, Massachusetts.
11 VA Spinal Cord Injuries and Disorders System of Care, Boston, Massachusetts.
12 Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts.
13 MedStar Georgetown University Hospital, MedStar Washington Hospital Center, MedStar Heart and Vascular Institute, Washington, DC.
14 Uniformed University of the Health Sciences, Bethesda, Maryland.