Sawka, Keri JoMcCormack, Gavin R.Nettel-Aguirre, AlbertoHawe, PenelopeDoyle-Baker, Patricia K.2014-02-192014-02-192013-12-01Sawka et al.: Friendship networks and physical activity and sedentary behavior among youth: a systematized review. International Journal of Behavioral Nutrition and Physical Activity 2013 10:130. doi:10.1186/1479-5868-10-130http://hdl.handle.net/1880/49936Article deposited according to agreement with BMC, December 2, 2010 and according to publisher policies: http://www.biomedcentral.com/about/copyright February 19, 2014engAttribution 4.0 Internationaljournal article10.11575/PRISM/33632