Changes in screen time activity in Norwegian children from 2001 to 2008: two cross sectional studies
<p>Abstract</p> <p>Background</p> <p>There has been an increase in screen-based communication, leading to concerns about the negative health effects of screen-based activities in children and adolescents. The present study aimed to (1) analyze changes in screen time act...
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BMC,
2013-01-01T00:00:00Z.
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