1. VA Office of Research and Development, Washington, DC;
2. Mental Health Service, VA Ann Arbor Healthcare System, Ann Arbor, MI; and Department of Psychiatry, University of Michigan, Ann Arbor, MI;
3. Geriatric Research, Education, and Clinical Center (GRECC) and Division of Gerontology and Geriatrics, Birmingham VA Medical Center (VAMC) Birmingham, AL; and Division of Gerontology, Geriatrics, and Palliative Medicine, Department of Medicine, University of Alabama at Birmingham School of Medicine, Birmingham, AL;
4. Research and Development Service, Edward Hines, Jr. VA Hospital, Hines, IL; and College of Nursing, University of Illinois at Chicago, Chicago, IL;
5. Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, Pittsburgh, PA;
6. GRECC, VA Pittsburgh Healthcare System, Pittsburg, PA; and University of Pittsburgh, Pittsburgh, PA;
7. Neurology Service, Baltimore VAMC, Baltimore, MD; and Department of Neurology, University of Maryland School of Medicine, Baltimore, MD;
8. National Center for Rehabilitative Auditory Research, Portland VAMC, Portland, OR; and Department of Otolaryngology, Head and Neck Surgery, Oregon Health & Science University, Portland, OR;
9. Division of Neuro-ophthalmology and VA Research Center for the Prevention and Treatment of Visual Loss, Iowa City VA Health Care System, Iowa City, IA; and University of Iowa, Iowa City, IA;
10. Pain Research, Informatics, Medical Comorbidities, and Education (PRIME) Center, VA Connecticut Healthcare System, New Haven, CT; and Departments of Psychiatry, Neurology, and Psychology, Yale University, New Haven, CT;
11. Providence VAMC, Providence, RI; and Departments of Neurology and Public Health, Division of Biology and Medicine, Brown University, Providence RI;
12. Rehabilitation Research and Development (RR&D) Center of Excellence and GRECC, Baltimore VAMC, Baltimore, MD; and Departments of Neurology, Medicine, and Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD;
13. Bay Pines VA Healthcare System, Bay Pines, FL; and Department of Communication Sciences and Disorders, College of Behavioral and Community Disorders, University of South Florida, Tampa, FL;
14. GRECC and Translational Research Center for TBI and Stress Disorders, VA Boston Healthcare System, Boston, MA; and Department of Psychiatry, Harvard Medical School, Boston, MA;
15. GRECC, VA Pittsburgh Healthcare System, Pittsburg, PA; and Department of Communication Science and Disorders, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA;
16. Providence VAMC, Providence, RI; and Alpert Medical School, Brown University, Providence, RI;
17. Cleveland Functional Electrical Stimulation Center, Louis Stokes Cleveland VAMC, Cleveland, OH; and Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH;
18. VA San Diego Healthcare System, San Diego, CA; and Department of Neurosciences, University of California, San Diego, La Jolla, CA;
19. Center of Excellence for Restoration of Nervous System Function, VA Connecticut Healthcare System, New Haven, CT; and Yale School of Medicine, New Haven, CT;
20. GRECC, Baltimore VAMC, Baltimore, MD; and Department of Neurology, University of Maryland School of Medicine, Baltimore, MD