1. Department of Anesthesia, Veterans Affairs Health Care System, Integrative Health, Adjunct College of Nursing, University of Utah, Salt Lake City, UT.
2. Department of Anesthesia, University of Utah, Pain Research Center, Salt Lake City, UT.
3. Department of Health Promotion and Education, University of Utah, Salt Lake City, UT.
4. Nursing Department, Veterans Affairs Salt Lake City Health Care System, Salt Lake City, UT.
5. Department of Internal Medicine, Statistics, University of Utah, Salt Lake City, UT.