. 2021 May 14;23(5):e19688. doi: 10.2196/19688
©Natalie Gold, Amy Yau, Benjamin Rigby, Chris Dyke, Elizabeth Alice Remfry, Tim Chadborn. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 14.05.2021.
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Figure 1.
PRISMA flowchart. PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-Analyses.