1. Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, Minnesota.
2. Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota.
3. Department of Physical Medicine and Rehabilitation, Rehabilitation Medicine Research Center, Mayo Clinic, Rochester, Minnesota.
4. Department of Integrative Biology and Physiology University of California Los Angeles, Los Angeles, California.
5. Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, Texas.
6. Pavlov Institute of Physiology, St. Petersburg, Russia.
7. Department of Neurobiology, University of California Los Angeles, Los Angeles, California.
8. Department of Neurosurgery, University of California Los Angeles, Los Angeles, California.
9. Brain Research Institute, University of California Los Angeles, Los Angeles, California.
10. Institut Guttmann, Hospital de Neurorehabilitació, Institut Universitari adscrit a la Universitat Autònoma de Barcelona, Barcelona, Badalona, Spain.
11. Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota.