1. 1 Kentucky Spinal Cord Injury Research Center, University of Louisville, Louisville, Kentucky
2. 2 Department of Neurological Surgery, University of Louisville, Louisville, Kentucky
3. 3 Department of Physiology, University of Louisville, Louisville, Kentucky
4. 4 University of Louisville School of Medicine, Louisville, Kentucky
5. 5 Division of Physical Medicine and Rehabilitation, University of Louisville, Louisville, Kentucky
6. 6 Department of Urology, University of Louisville, Louisville, Kentucky
7. 7 Department of Health Management and Systems Sciences, University of Louisville, Louisville, Kentucky