1. Moss Rehabilitation Research Institute, and Department of Rehabilitation Medicine Thomas Jefferson University, Philadelphia, PA (D.J.E.).
2. Exercise Medicine Research Institute and School of Medical and Health Sciences, Edith Cowan University Australia (D.J.E.).
3. Burke Neurological Institute, White Plains, NY (D.J.E.).
4. USC Neurorestoration Center, Rancho Los Amigos National Rehabilitation Center, Los Angeles, CA (C.Y.L.).
5. Department of Rehabilitation, Exercise and Nutrition Sciences, University of Cincinnati, OH (K.D.).
6. Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA (F.F.).
7. Nexstim Corporation, Helsinki, Finland (J.L.).
8. Division of Biostatistics, Thomas Jefferson University, PA (B.E.L.).
9. The Shirley Ryan AbilityLab, Northwestern University Feinberg School of Medicine, Chicago, IL (L.M.R., R.L.H.).