. 2021 Jun 13;23(6):e24584. doi: 10.2196/24584
©Moritz Köhnen, Levente Kriston, Martin Härter, Harald Baumeister, Sarah Liebherz. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 13.06.2021.
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Figure 2.
Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flowchart.