. 2018 Feb 1;20(2):e29. doi: 10.2196/jmir.8538
©Carissa Bonner, Michael Anthony Fajardo, Samuel Hui, Renee Stubbs, Lyndal Trevena. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 01.02.2018.
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Figure 1.
Search strategy and results (updated with higher res image).