1. The Miami Project to Cure Paralysis, Neurological Surgery, University of Miami School of Medicine, Miami, Florida.
2. The Miami Project to Cure Paralysis, University of Miami School of Medicine, Miami, Florida.
3. Department of Neurosurgery, Uijongbu St. Mary's Hospital, Catholic University Medical College, Seoul, South Korea.
4. The Miami Project to Cure Paralysis, Departments of Cell Biology and Anatomy, Neurology, and Neurological Surgery, University of Miami School of Medicine, Miami, Florida.