. 2021 May 5;23(5):e27531. doi: 10.2196/27531
©Oliver T Nguyen, Amir Alishahi Tabriz, Jinhai Huo, Karim Hanna, Christopher M Shea, Kea Turner. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 05.05.2021.
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Figure 1.
PRISMA [34] flowchart.