. 2017 Mar 7;19(3):e68. doi: 10.2196/jmir.6874
©Dong Wen, Xingting Zhang, Xingyu Liu, Jianbo Lei. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 07.03.2017.
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Figure 3.
Box plot of the measurement distribution of activity duration by different devices.