1. Division of Hospital Medicine, Department of Medicine, University of California, San Francisco, California.
2. VA Eastern Colorado Geriatric Research Education and Clinical Center (GRECC), Denver, Colorado.
3. Division of Geriatric Medicine, Department of Medicine, University of Colorado, Aurora, Colorado.
4. Caleb G. Clark Potrero Hill Health Center, Department of Public Health, San Francisco, California.
5. Division of General Internal Medicine, Zuckerberg San Francisco General Hospital, University of California, San Francisco, California.
6. Division of Geriatrics, Department of Medicine, University of California, San Francisco, California.
7. San Francisco Veterans Affairs Medical Center, San Francisco, California.