. 2019 Sep 30;7(9):e13703. doi: 10.2196/13703
©Corinna Anna Anna Faust-Christmann, Bertram Taetz, Gregor Zolynski, Tobias Zimmermann, Gabriele Bleser. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 30.09.2019
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