1. Department of Neuroscience, Ohio State University, Columbus, Ohio.
2. Center for Brain and Spinal Cord Repair, Ohio State University, Columbus, Ohio.
3. Institute for Behavioral Medicine Research, Ohio State University, Columbus, Ohio.
4. Department of Child Health, Barrow Neurological Institute at Phoenix Children's Hospital, University of Arizona, Phoenix, Arizona.
5. Department of Surgery, Ohio State University, Columbus, Ohio.