(Q39701658)
Statements
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Nonoccupational physical activity by degree of urbanization and U.S. geographic region (English)
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Barbara E Ainsworth
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Jared P Reis
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Heather R Bowles
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Katrina D Dubose
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Sharon Smith
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James N Laditka
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1 December 2004
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36
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12
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2093-2098
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Identifiers
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