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. 2021 Jun 4;11:648839. doi: 10.3389/fonc.2021.648839

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Copyright © 2021 Zhang, Fan, Zhang, Wang, Wang and Zhu

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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3D-TRUS pictures. (A) A case with complete response determined by three-dimensional transrectal ultrasound (3D-TRUS) and confirmed by TME pathological report (TRG = 0). (B) A case with tumor residue which was also confirmed by TME pathological report with TRG = 3.