1. Shirley Ryan AbilityLab Chicago IL USA
2. Departments of Physical Therapy and Biomedical Engineering Drexel University Philadelphia PA USA
3. Department of Orthopaedic Surgery Mayo Clinic Rochester MN USA
4. Department of Neurology Mayo Clinic Rochester MN USA
5. Research Service Hines V.A. Hospital Maywood IL USA
6. Departments of Physiology, Biomedical Engineering and Physical Medicine and Rehabilitation Northwestern University Chicago IL USA