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Associations between Screen Time and Physical Activity among Spanish Adolescents
- Jose A. Serrano-Sanchez,
- Sara Martí-Trujillo,
- Angela Lera-Navarro,
- Cecilia Dorado-García,
- Juan J. González-Henríquez,
- Joaquín Sanchís-Moysi
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- Published: September 1, 2011
- https://doi.org/10.1371/journal.pone.0024453