Wearable Activity Tracker Use Among Australian Adolescents: Usability and Acceptability Study oleh Ridgers, Nicola D, Timperio, Anna, Brown, Helen, Ball, Kylie, Macfarlane, Susie, Lai, Samuel K, Richards, Kara, Mackintosh, Kelly A, McNarry, Melitta A, Foster, Megan, Salmon, Jo