| Chi-Hong Tseng | Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California los angeles |
| Chi-Hong Tseng | Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California los angeles |
| Carol M Mangione | David Geffen School of Medicine at university of california los angeles |
| Carol M Mangione | university of california los angeles Fielding School of Public Health |
| Carol M Mangione | Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California los angeles |