1. Department of Physical Medicine and Rehabilitation, Rehabilitation Medicine Research Center, Mayo Clinic, Rochester, Minnesota, USA
2. Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, Minnesota, USA
3. Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
4. Department of Urology, Mayo Clinic, Rochester, Minnesota, USA
5. Department of Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
6. Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
7. Department of Neurosurgery, Center for Neuroregeneration, Houston Methodist Research Institute, Houston, Texas, USA