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. 2020 Jan 24;8(1):e14800. doi: 10.2196/14800

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©Maogui Hu, Chengdong Xu, Jinfeng Wang. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 24.01.2020.

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.

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Provincial daily number and proportion of social networking men who have sex with men (MSM) from the Blued app. Numbers after the bars in (a) denote the percent of daily online MSM among the whole country; numbers after the bars in (b) denote the proportion of daily online MSM among local adult men aged 18 to 64 years; the two numbers after each bar are for nonholiday and holiday respectively.