Salway, R E, Sebire, S J, Solomon-Moore, E L, Thompson, J L & Jago, R 2018, ' Associations within school-based same-sex friendship networks of children's physical activity and sedentary behaviours : A cross-sectional social network analysis ', International Journal of Behavioral Nutrition and Physical Activity, vol. 15, no. 1, 18 . https://doi.org/10.1186/s12966-018-0653-9 The International Journal of Behavioral Nutrition and Physical Activity Salway, R E, Sebire, S J, Solomon-Moore, E L, Thompson, J L & Jago, R 2018, ' Associations within school-based same-sex friendship networks of children's physical activity and sedentary behaviours : A cross-sectional social network analysis ' International Journal of Behavioral Nutrition and Physical Activity, vol 15, no. 1, 18 . DOI: 10.1186/s12966-018-0653-9 International Journal of Behavioral Nutrition and Physical Activity, Vol 15, Iss 1, Pp 1-9 (2018) Salway, R, Sebire, S, Solomon-Moore, E, Thompson, J L & Jago, R 2018, ' Associations within school-based same-sex friendship networks of children’s physical activity and sedentary behaviours: a cross-sectional social network analysis ', International Journal of Behavioral Nutrition and Physical Activity, vol. 15, no. 1, 18, pp. 18 . https://doi.org/10.1186/s12966-018-0653-9