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Physical activity and screen time in adolescents and their friends

John R Sirard1, Meg Bruening, Melanie M Wall

  • 1Kinesiology Program, Curry School of Education, University of Virginia, Charlottesville, VA 22904-4407, USA. jrs2wq@virginia.edu

American Journal of Preventive Medicine
|December 21, 2012
PubMed
Abstract

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