No abstract available
Publication types
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Comparative Study
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Letter
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Aged
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Aged, 80 and over
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Aging*
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Disease Progression
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Female
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Humans
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Male
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Middle Aged
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Postpoliomyelitis Syndrome / diagnosis*
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Retrospective Studies
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Severity of Illness Index
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Surveys and Questionnaires