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. 2023 Mar 21;13:1139068. doi: 10.3389/fcimb.2023.1139068

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Copyright © 2023 Ye, Chen, Zhong, Cao, Fu and Xu

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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EBV-positive ratios in different periods from 2017 to 2022. Different colors represented different quarters: Q1 (blue), Q2 (red), Q3 (green), Q4 (yellow).