1. Marcus Neuroscience Institute, Boca Raton, FL, USA
2. Northwestern University Feinberg School of Medicine, Chicago, IL, USA
3. The Rehabilitation Institute of Chicago, Chicago, IL, USA
4. University of Cincinnati, Cincinnati, OH, USA
5. University of Southern California, Los Angeles, CA, USA
6. Oregon Health & Science University, Portland, OR, USA
7. University of California, Irvine, CA, USA
8. St. Jude Medical, Plano, TX, USA