1. Department of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami, Miami, Florida and Bruce W. Carter Department of Veterans Affairs Medical Center, Miami, Florida
2. Shirley Ryan AbilityLab and Northwestern University, Chicago, United States and Hines Veterans Affairs Medical Center, Chicago, Illinois
3. Institute of Neuroscience, University of Copenhagen and Institute of Nutrition and Exercise and Elsass Institute, University of Copenhagen, Copenhagen, Denmark