[1] USC, Dept Family Med, Keck Sch Med, Los Angeles, CA 90033 USA
[2] USC, Gehr Family Ctr Hlth Syst Sci & Innovat, Los Angeles, CA 90033 USA
[3] Los Angeles Cty Univ Southern Calif Med Ctr, Los Angeles, CA USA
[4] USC, Dept Clin Med, Keck Sch Med, Los Angeles, CA 90033 USA