. 2021 Nov 22;7(11):e33576. doi: 10.2196/33576
©Onicio Leal-Neto, Thomas Egger, Matthias Schlegel, Domenica Flury, Johannes Sumer, Werner Albrich, Baharak Babouee Flury, Stefan Kuster, Pietro Vernazza, Christian Kahlert, Philipp Kohler. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 22.11.2021.
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