1. School of Medicine, University of California, San Francisco, San Francisco, California, USA.
2. University of California, Berkeley, Berkeley, California, USA.
3. Department of Internal Medicine, University of Washington, Seattle, Washington, USA.
4. College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California, USA.
5. UCSF Library, University of California, San Francisco, San Francisco, California, USA.
6. Division of General Internal Medicine, Department of Medicine, Center for Aging in Diverse Communities, University of California, San Francisco, San Francisco, California, USA.
7. Multiethnic Health Equity Research Center, Division of General Internal Medicine, Department of Medicine, University of California, San Francisco, San Francisco, California, USA.
8. Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, USA.