1. Department of Psychiatry and Behavioral Sciences and Vanderbilt University Medical Center, Nashville, TN.
2. Department of Physical Medicine and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN.
3. Osher Center for Integrative Medicine, Vanderbilt University Medical Center, Nashville, TN.
4. Department of Rehabilitation Medicine, University of Washington, Seattle, WA.
5. VA Puget Sound Healthcare System, Seattle, WA.