. 2020 Dec 11;22(12):e23369. doi: 10.2196/23369
©Lauren Bell, Claire Garnett, Tianchen Qian, Olga Perski, Elizabeth Williamson, Henry WW Potts. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 11.12.2020.
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Figure 1.
Heat maps of total frequency of use (sessions) and total time on app (hours).