1. National Multiple Sclerosis Society, New York, NY, USA
2. EvergreenHealth, Kirkland, WA, USA
3. School of Allied Health and Health Research Institute, University of Limerick, Limerick, Ireland
4. Section of Sport Science, Department of Public Health, Aarhus University, Aarhus, Denmark
5. Pacific Neuroscience Institute, Santa Monica, CA, USA
6. Consortium of Multiple Sclerosis Centers and International Organization of MS Nurses, Hackensack, NJ, USA
7. Program in Physical Therapy, Hunter College, New York, NY, USA
8. Motion Analysis Lab, Kennedy Krieger Institute, Baltimore, MD, USA
9. Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI, USA
10. Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON, Canada
11. Horizon Rehabilitation Centers, Omaha, NE, USA
12. Fit Up Neurological and Sport Physiotherapy, Antwerp, Belgium
13. UAB/Lakeshore Research Collaborative, The University of Alabama at Birmingham, Birmingham, AL, USA