. 2020 Jul 22;8(7):e15576. doi: 10.2196/15576
©Matilda Swee Sun Tang, Katherine Moore, Andrew McGavigan, Robyn A Clark, Anand N Ganesan. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 22.07.2020.
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Figure 1.
PRISMA Flow Chart.