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Is spending time in screen-based sedentary behaviors associated with less physical activity: a cross national investigation.

Melkevik O, Torsheim T, Iannotti RJ, Wold B.

Int J Behav Nutr Phys Act. 2010 May 21;7:46. doi: 10.1186/1479-5868-7-46.

PMID: 20492643 [PubMed]

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