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. 2020 Jun 26;22(6):e18181. doi: 10.2196/18181

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©Ro-Ting Lin, Yawen Cheng, Yan-Cheng Jiang. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 26.06.2020.

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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Policy changes and search volume trends for working hours, overwork, and job stress from January 2004 to November 2019.