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. 2021 Nov 17;23(11):e29003. doi: 10.2196/29003

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©Jihyun Park, Mi-Jeong Park, Young-Gyun Seo. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 17.11.2021.

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 https://www.jmir.org/, as well as this copyright and license information must be included.

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Funnel plot for changes in BMI. The funnel plots of SE of weighted mean difference (WMD) against WMD for BMI to assess for publication bias. WMD: weighted mean difference.