1. Department of Physical Medicine and RehabilitationNorthwestern University Feinberg School of Medicine/Shirley Ryan AbilityLab Chicago IL
2. American Board of Physical Medicine and Rehabilitation, Rochester, MN
3. Department of Physical Medicine and RehabilitationMayo Clinic, Phoenix, AZ and American Board of Physical Medicine and Rehabilitation, Rochester, MN
4. Department of Physical Medicine and RehabilitationCase Western Reserve University/Metro Health Rehabilitation Institute of Ohio, Cleveland, OH
5. Division of Physical Medicine and RehabilitationUniversity of Toronto, Toronto, Ontario, Canada