. 2020 Oct 19;8(10):e19280. doi: 10.2196/19280
©Manuel Schmidt-Kraepelin, Philipp A. Toussaint, Scott Thiebes, Juho Hamari, Ali Sunyaev. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 19.10.2020.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.