. 2015 May 27;3(2):e45. doi: 10.2196/mhealth.4271
©Christine Marie Zwart, Miao He, Teresa Wu, Bart M. Demaerschalk, Joseph Ross Mitchell, Amy K Hara. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 27.05.2015.
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Figure 2.
Usage counts are shown broken down by device and Internet connection type.