. 2021 Feb 9;23(2):e19910. doi: 10.2196/19910
©Victoria Johansson, Anna Sigridur Islind, Tomas Lindroth, Eva Angenete, Martin Gellerstedt. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 09.02.2021.
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Figure 1.
Main search strategy.