. 2021 Jul 12;9(7):e26498. doi: 10.2196/26498
©Alina Bruhns, Thies Lüdtke, Steffen Moritz, Lara Bücker. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 12.07.2021.
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Figure 2.
Screenshots of exercises.