1. Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
2. Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
3. Department of Neurology, Mayo Clinic, Rochester, MN, USA
4. Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
5. Department of Neurology, Barrow Neurological Institute, Phoenix, AZ, USA