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. 2021 Dec 2;8:752009. doi: 10.3389/fsurg.2021.752009

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Copyright © 2021 Zhang, Qi, Yi, Cao, Gao and Zhang.

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 plots of perioperative outcomes comparing intraoperative blood loss (A), operative time (B), the number of retrieved lymph nodes (C), circumferential resection margin (D), distal resection margin (E), and conversion rate (F).