. 2020 Apr 23;22(4):e15397. doi: 10.2196/15397
©Colette van het Schip, Kei Long Cheung, Stan Vluggen, Ciska Hoving, Nicolaas C Schaper, Hein de Vries. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 23.04.2020.
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