1. Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, Texas , USA
2. Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, Washington , USA
3. Department of Neurological Surgery, University of Washington, Seattle, Washington, USA
4. MHBS/Polytrauma, Defense and Veterans Brain Injury Center, James A. Haley Veterans Hospital; Division of Pulmonary and Sleep Medicine, Department of Internal Medicine, University of South Florida, Tampa, Florida, USA
5. Baylor Scott and White Institute for Rehabilitation, Dallas, Texas, USA
6. Department of Rehabilitation Medicine, Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA