1. Susan Samueli Center for Integrative Medicine, affiliated with School of Medicine, University of California, Irvine, Costa Mesa, CA.
2. Touro University College of Osteopathic Medicine, Vallejo, CA.
3. Department of Epidemiology, School of Public Health, Harvard University, Boston, MA.
4. Department of Sociology, University of California, Irvine, Irvine, CA.
5. Department of Family Medicine, School of Medicine, University of California, Irvine, Irvine, CA.