Greysen S Ryan, Covinsky Kenneth E
Division of Hospital Medicine, University of California San Francisco (UCSF), San Francisco.
Division of Geriatric Medicine, University of California San Francisco, San Francisco3San Francisco Veterans Affairs Medical Center, San Francisco, California.
JAMA Intern Med. 2015 Oct;175(10):1723. doi: 10.1001/jamainternmed.2015.3925.