1. Department of Internal Medicine, Division of Rheumatology, University of Michigan, Ann Arbor, MI.
2. Academy of Acupuncture and Chinese Medicine, Bethesda, MD.
3. Department of Rheumatology, Georgetown University, Washington, DC.
4. Department of Anesthesiology, University of Cologne, Cologne, Germany.
5. Department of Biostatistics, University of Michigan, Ann Arbor, MI.