(Q48655992)
Statements
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Age-associated difference in circadian sleep-wake and rest-activity rhythms. (English)
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Yong-Lu Huang
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Rong-Yu Liu
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Qing-Song Wang
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Eus J W Van Someren
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Hao Xu
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Jiang-Ning Zhou
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1 August 2002
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76
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4-5
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597-603
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