1. Spinal Cord Injury/Disorder Center, Long Beach Veterans Affairs (VA) Medical Center, Long Beach, California, USA
2. Physical Medicine & Rehabilitation Department, UC Irvine School of Medicine, Irvine, California, USA
3. Center of Innovation for Complex Chronic Healthcare, Edward Hines Jr. Department of VA Hospital, Chicago, Illinois, USA
4. Econometrica, Inc, Bethesda, Massachusetts, USA
5. Spinal Cord Injury/Disorder Center, Louis Stokes Cleveland (VA) Medical Center, Cleveland, Ohio, USA
6. Department of Physical Medicine & Rehabilitation, Case Western Reserve University, Cleveland, Ohio, USA
7. Institute for Healthcare Studies, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA