Affiliation: | 1. Clinical Epidemiology Research Center, Veterans Affairs Connecticut Healthcare System, , West Haven, Connecticut;2. Department of Medicine, Yale University;3. Program on Aging, School of Medicine, Yale University, , New Haven, Connecticut;4. Geriatrics Research Education and Clinical Center, Veterans Affairs Palo Alto Health Care System, , Palo Alto, California;5. Center for Primary Care and Outcomes Research, School of Medicine, Stanford University, , Stanford, California |