1 Division of Hospital Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado. Electronic address: juan.lessing@cuanschutz.edu.
2 Division of Hospital Medicine, Department of Internal Medicine, Dell Medical School, The University of Texas, Austin, Austin, Texas.
3 Department of Medicine, University of California, San Francisco, San Francisco, California; Medical Service, San Francisco VA Medical Center, San Francisco, California.