. 2021 Apr 21;9(4):e23784. doi: 10.2196/23784
©Felix Reinecke, Florian Dittrich, Marcel Dudda, Andreas Stang, Christina Polan, Roman Müller, Paula Beck, Max Daniel Kauther. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 21.04.2021.
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