1. Research Department, Oregon College of Oriental Medicine, Portland, OR 97216-2859, USA
2. Helfgott Research Institute, National College of Natural Medicine, Portland, OR 97201-4848, USA
3. Department of Physical Medicine & Rehabilitation, Kaiser Permanente Northwest, Portland, OR 97227-1110, USA
4. Fibromyalgia Research Unit, Oregon Health Science University, Portland, OR 97239-3098, USA
5. Program in Integrative Medicine and Department of Family & Community Medicine, College of Medicine, University of Arizona, Tucson, AZ 85724-5052, USA