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. 2022 Mar 28;9:844371. doi: 10.3389/fmed.2022.844371

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Copyright © 2022 Zhu, Yang, Mu, Wang, Zhang, Wang 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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The pooled result of POD incidence in surgical patients with GA and RA after excluding the studies without the information on preoperative cognitive or neuropsychological assessment.