. 2020 Jun 16;22(6):e16480. doi: 10.2196/16480
©Lindsay A Jibb, James S Khan, Puneet Seth, Chitra Lalloo, Lauren Mulrooney, Kathryn Nicholson, Dominik A Nowak, Harneel Kaur, Alyssandra Chee-A-Tow, Joel Foster, Jennifer N Stinson. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 16.06.2020.
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Figure 2.
Number of studies meeting inclusion criteria overtime.