. 2019 Apr 8;21(4):e12521. doi: 10.2196/12521
©Y Alicia Hong, Chen Liang, Tiffany A Radcliff, Lisa T Wigfall, Richard L Street. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 08.04.2019.
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Figure 1.
Flow chart of the literature search and article retrieval.