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. 2021 Apr 16;11:671228. doi: 10.3389/fonc.2021.671228

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Copyright © 2021 Chen, Yang, Wang, Hu, Zhang, Zhang, Qian, Zhang and Han

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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(A) Subgroups analysis of PFS in P+C and P+A groups. (B) Subgroups analysis of OS in P+C and P+A groups. (▲Represented HR cannot be calculated due to the sample.