1. Rehabilitation Sciences Program, School of Medicine, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
2. Department of Neurology, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
3. Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
4. Department of Ophthalmology, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
5. Physical Therapy Program, School of Medicine, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
6. Morgridge College of Education, University of Denver, Denver, CO, USA
7. Patient Advocate, Patients Working with Researchers Group, Movement Disorders Center, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA