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. 2020 Sep 9;22(9):e19907. doi: 10.2196/19907

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©Se Young Jung, Hyeontae Jo, Hwijae Son, Hyung Ju Hwang. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 09.09.2020.

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 the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.

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Cumulative numbers of infected and recovered COVID-19 cases in South Korea (left) and cumulative numbers of negative cases and tested people (right).