No abstract available
MeSH terms
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Adult
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Aged
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Canada / epidemiology
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Data Collection / methods*
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Female
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Health Status*
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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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Quality of Life*
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Reference Values
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Reproducibility of Results
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Surveys and Questionnaires / standards*
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United Kingdom / epidemiology
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United States / epidemiology