1. Departments of Medicine (Geriatrics) & Ophthalmology, Duke University School of Medicine, Durham, North Carolina2Duke Center for the Study of Aging and Human Development, Durham, North Carolina3Durham VA Geriatrics Research Education and Clinical Center (
2. Departments of Otolaryngology—Head & Neck Surgery & Medicine (Geriatrics), Johns Hopkins School of Medicine, Baltimore, Maryland5Departments of Mental Health and Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland6Johns Hopk