Affiliation: | (1) Department of Family and Community Medicine, University of California-San Francisco, 2393 Filbert Street, San Francisco, CA 94123, USA;(2) Department of Medicine, Kaiser Permanente Medical Center, Oakland, CA, USA;(3) Department of Public Health, Community-Oriented Primary Care, San Francisco, CA, USA;(4) Maxine Hall Health Center, Community Health Network of San Francisco, San Francisco, CA, USA |