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. 2024 Jan 17;12:e49373. doi: 10.2196/49373

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©Yirong He, Chuanya Huang, Qiuyang He, Shujuan Liao, Biru Luo. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 17.01.2024.

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

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Forest plot of the effect of mobile health interventions on preterm birth [26-29,31,32,34]. IV: inverse variance.