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. 2021 May 25;8:656792. doi: 10.3389/fmed.2021.656792

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Copyright © 2021 Xiao, Lin, Wang, Zhan and Chen.

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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Funnel plot and Egger's test and sensitivity analysis. (A) DXM vs. PNS Funnel plot and Egger's test. (B) DXM vs. RTX+DXM Funnel plot and Egger's test. (C) DXM vs. PNS sensitivity analysis. (D) DXM vs. RTX + DXM sensitivity analysis.