1. Fox School of Business, Temple University, Philadelphia, PA, USA
2. Department of Medicine, Division of General Internal Medicine, iTEQC Research Program, University of California, Irvine, USA
3. School of Medicine, Division of Health Care Policy & Research, University of Colorado Anschutz Medical Campus, Aurora, USA
4. Department of Medicine, Division of General Internal Medicine and Health Services Research, University of California, Los Angeles, USA
5. Public Health, and Psychology and Social Behavior, Department of Medicine, Division of General Internal Medicine, University of California, Irvine, USA
6. Public Health and Nursing, Department of Medicine, Division of General Internal Medicine, iTEQC Research Program, University of California, Irvine, USA