. 2019 Sep 16;8(3):e12855. doi: 10.2196/12855
©Kieran Edward Murray, Timothy Eanna Murray, Anna Caroline O'Rourke, Candice Low, Douglas James Veale. Originally published in the Interactive Journal of Medical Research (http://www.i-jmr.org/), 16.09.2019
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Internet search strategy (January 2018).