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Less screen time and more frequent vigorous physical activity is associated with lower risk of reporting negative mental health symptoms among Icelandic adolescents
- Soffia M. Hrafnkelsdottir,
- Robert J. Brychta,
- Vaka Rognvaldsdottir,
- Sunna Gestsdottir,
- Kong Y. Chen,
- Erlingur Johannsson,
- Sigridur L. Guðmundsdottir,
- Sigurbjorn A. Arngrimsson
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- Published: April 26, 2018
- https://doi.org/10.1371/journal.pone.0196286