No abstract available
Publication types
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Letter
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Research Support, N.I.H., Extramural
MeSH terms
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Aged
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Aged, 80 and over
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Fatigue / epidemiology*
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Female
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Health Surveys*
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Humans
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Male
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Middle Aged
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Prevalence
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Retirement / statistics & numerical data*
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Retrospective Studies
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Survival Rate / trends
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United States / epidemiology