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Screen time behaviours and caffeine intake in US children: findings from the cross-sectional National Health and Nutrition Examination Survey (NHANES)

Crossref DOI link: https://doi.org/10.1136/bmjpo-2018-000258

Published Online: 2018-06-30

Published Print: 2018-06

Update policy: https://doi.org/10.1136/crossmarkpolicy

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