. 2019 Apr 11;21(4):e12779. doi: 10.2196/12779
©Ronald Dendere, Christine Slade, Andrew Burton-Jones, Clair Sullivan, Andrew Staib, Monika Janda. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 11.04.2019.
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Figure 1.
Preferred Reporting Items for Systematic Reviews and Meta-Analyses flowchart of the search and selection process.