Elaine C Khoong1,2, Jorge A Rodriguez3. 1. Division of General Internal Medicine at Zuckerberg San Francisco General Hospital, Department of Medicine, UCSF, San Francisco, CA, USA. elaine.khoong@ucsf.edu. 2. UCSF Center for Vulnerable Populations at Zuckerberg San Francisco General Hospital, San Francisco, CA, USA. elaine.khoong@ucsf.edu. 3. Division of General Internal Medicine and Primary Care, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.