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. 2022 Apr 29;12:878639. doi: 10.3389/fonc.2022.878639

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Copyright © 2022 Hong, Liang, Chen, Yang, Huang, Yi, Wang, Liang, Zhang and Huang

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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Kaplan-Meier curves for progression-free survival (PFS) and overall survival (OS) in CRC patients. (A, C) relation between CTC number and (A)PFS and (C)OS rate. (B, D) relation between M-CTC number and (B) PFS and (D) OS rate.