1 Division of Hospital Medicine, San Francisco General Hospital and Trauma Center, Department of Medicine, University of California, San Francisco, San Francisco, USA.
2 Center for Vulnerable Populations, Department of Medicine, University of California, San Francisco, San Francisco, USA.
3 Division of Hospital Medicine, San Francisco General Hospital and Trauma Center, Department of Medicine, University of California, San Francisco, San Francisco, USA. lawrence.haber@ucsf.edu.