No abstract available
Publication types
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Letter
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Anemia, Iron-Deficiency / epidemiology
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Blood Donors / statistics & numerical data*
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Female
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Humans
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Incidence
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Male
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Middle Aged
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Periodicity*
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Polysomnography
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Restless Legs Syndrome / epidemiology
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Sleep Wake Disorders / epidemiology*