1. Center for East-West Medicine, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
2. Division of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
3. New York Medical College, Valhalla, NY, USA.
4. Center for Complementary and Integrative Medicine, Division of Rheumatology, Department of Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA.