1. Department of Neurology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
2. Department of Psychology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
3. Department of Psychiatry, University of North Texas Health Science Center, Fort Worth, TX, USA
4. University of Texas Health Science Center, Division of Epidemiology, Houston, TX, USA
5. Department of Neurology, Baylor College of Medicine, Houston, TX, USA
6. Department of Psychology University of Houston, Houston, TX, USA
7. Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
8. Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, USA