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. 2022 Jun 16;12:889144. doi: 10.3389/fonc.2022.889144

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Copyright © 2022 Xia, Li, Zhai, Liu, Guo and Wang

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 Kaplan–Meier curves of CSS (A) and OS (B) after patients were stratified according to 27% pLND. HR, hazard ratio; CI, confidence interval; pLND, positive lymph node density; CSS, cancer-specific survival; OS, overall survival.