1. Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston/Harris County Hospital District, TX, USA
2. Brain Injury Research Center, TIRR Memorial Hermann, Houston, TX, USA
3. Center for Trauma Rehabilitation Research, Harris County Hospital District, Houston, TX, USA
4. Graduate College of Social Work, University of Houston, Houston, TX, USA
5. Chronic Disease Prevention and Control Center, Department of Medicine, Baylor College of Medicine, Houston, TX, USA