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. 2022 Sep 21;12:988458. doi: 10.3389/fonc.2022.988458

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Copyright © 2022 Wei, Deng, Weng, Li, Lan, Li, Ye, Wang, Liu, Ou, Wei, Huang, Xie, Dong and Qu

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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Correlation between total circulating tumor cell (CTC) numbers and clinical characteristics. (A) Comparison of the total CTC numbers among different T stages (Kruskal–Wallis one-way analysis of variance). The CTC counts are presented as vertical boxes with error bars indicating the median, 10^th, 25^th, 75^th, and 90^th percentiles. (B) Comparison of the total CTC numbers among different N stages (Kruskal–Wallis one-way analysis of variance). (C) Comparison of the total CTC numbers between Epstein–Barr virus (EBV) DNA-negative and -positive groups (Mann–Whitney U test). (D) Correlation between the total CTC numbers and tumor sizes (Pearson correlation analysis).