1. Psychology Service, South Texas Veterans Health Care System San Antonio, TX, USA;
2. Department of Neurology, University of Texas Health Science Center, San Antonio, TX, USA;
3. Psychiatry & Neurology, Neuropsychiatric Institute, University of Illinois College of Medicine, Chicago, IL, USA;
4. Department of Psychology, University of Texas at San Antonio, San Antonio, TX, USA;
5. Polytrauma Rehabilitation Center, South Texas Veterans Health Care System, San Antonio, TX, USA;
6. VA Salt Lake City Health Care System, Informatics, Decision-Enhancement and Analytic Sciences Center, Salt Lake City, UT, USA;
7. Department of Internal Medicine, Division of Epidemiology, University of Utah School of Medicine, Salt Lake City, UT, USA;
8. Department of Rehabilitation Medicine, UT Health San Antonio, San Antonio, TX, USA