1. University of California, San Francisco (UCSF) School of Medicine, San Francisco, CA, USA
2. Department of Humanities and Social Sciences, University of California, San Francisco, San Francisco, CA, USA
3. UCSF Center for Vulnerable Populations at Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, USA
4. Department of Epidemiology & Biostatistics, University of California, San Francisco, San Francisco, CA, USA