1. Division of Physical Therapy, School of Allied Medical Professions, The Ohio State University, Columbus, Ohio.
2. Department of Neuroscience, The Ohio State University, Columbus, Ohio.
3. The Spinal Trauma and Repair (STAR) Laboratories, The Ohio State University, Columbus, Ohio.
4. Physical Medicine & Rehabilitation and Anatomy & Neurobiology, Reeve-Irvine Research Center, University of California, Irvine, California.
5. Department of Physiology & Cell Biology, The Ohio State University, Columbus, Ohio.
6. Department of Molecular Virology, Immunology & Medical Genetics, The Ohio State University, Columbus, Ohio.