1. Department of Psychology, University of Kentucky, Lexington, Kentucky.
2. Edward Hines Jr. Hospital, Hines, Illinois.
3. Northwestern University Feinberg School of Medicine, Chicago, Illinois.
4. Southern Arizona Department of Veterans Affairs Health Care System, Tucson, Arizona.
5. Department of Physical Medicine and Rehabilitation, University of Kentucky, Lexington, Kentucky.
6. Lexington Veterans Affairs Medical Center, Lexington, Kentucky.
7. Department of Psychiatry and Psychology, Mayo Clinic, Jacksonville, Florida.