(Q46386257)
Statements
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The level and tempo of children's physical activities: an observational study (English)
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The level and tempo of children???s physical activities: an observational study (English)
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Bailey RC
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Olson J
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Pepper SL
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Porszasz J
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Barstow TJ
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Cooper DM
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1 July 1995
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July 1995
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27
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7
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1033-1041
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