| Bowen Chung | Harbor-university of california los angeles Medical Center |
| Sitaram Vangala | Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at university of california los angeles |
| Sitaram Vangala | Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at university of california los angeles |
| Douglas S Bell | Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at university of california los angeles BOX 951736 |
| Carol M Mangione | Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at university of california los angeles, Fielding School of Public Health at university of california los angeles |