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. 2022 Nov 3;9:980511. doi: 10.3389/fmed.2022.980511

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Copyright © 2022 Liu, Liu, Liu, Cheng and Yan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Forest plot of comparison: Cured chronic endometritis vs. Non-chronic endometritis. (A) on-going pregnancy/live birth rate; (B) clinical pregnancy rate; (C) miscarriage rate/pregnancy loss rate. M-H Mantal Haenszel.