1. Department of Neurology, Duke University, Durham, NC, USA
2. Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, USA
3. Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
4. Department of Neurology, Washington University in St Louis School of Medicine, St Louis, MO, USA
5. Department of Neuroscience, The University of Sheffield Institute for Translational Neuroscience, Sheffield, United Kingdom of Great Britain and Northern Ireland
6. Department of Neurology, Neurology Associates, Lincoln, NE, USA
7. Department of Neurology, Emory Healthcare, Atlanta, GA, USA
8. Department of Neurology, McGill Centre for Research in Neuroscience, Montreal, Canada
9. UIndependent Consultant, United Kingdom of Great Britain and Northern Ireland