. 2018 Dec 20;20(12):e295. doi: 10.2196/jmir.9403
©Farzan Sasangohar, Elise Davis, Bita A Kash, Sohail R Shah. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 20.12.2018.
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Figure 1.
PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) diagram.