| Ron D Hays | university of california los angeles Division of General Internal Medicine and Health Services Research, University of California, Los Angeles School of Medicine |
| Chi-Hong Tseng | university of california los angeles Division of General Internal Medicine and Health Services Research, University of California, Los Angeles School of Medicine |
| Chi-Hong Tseng | university of california los angeles Division of General Internal Medicine and Health Services Research, University of California, Los Angeles School of Medicine |
| Neil S Wenger | university of california los angeles Division of General Internal Medicine and Health Services Research, University of California, Los Angeles School of Medicine |