Vitamin D insufficiency and frailty syndrome in older adults living in a Northern Taiwan community

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Marshal F. Folstein, Susan E. Folstein, Paul R. McHugh · Journal of Psychiatric Research · 1975 · 86.9K citations

The CES-D Scale

Lenore Sawyer Radloff · Applied Psychological Measurement · 1977 · 53.3K citations · Full text

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Frailty in Older Adults: Evidence for a Phenotype

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Assessment of Older People: Self-Maintaining and Instrumental Activities of Daily Living

M. P. Lawton, Elaine Brody · The Gerontologist · 1969 · 18.5K citations

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The Timed “Up & Go”: A Test of Basic Functional Mobility for Frail Elderly Persons

Diane Podsiadlo, Sandra Richardson · Journal of the American Geriatrics Society · 1991 · 14.3K citations

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