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. 2021 Feb 26;11:614082. doi: 10.3389/fonc.2021.614082

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Copyright © 2021 Zhu, Li, Bai, Shang, Fang, Cong, Li, Li, Song, Liu, Zhao, Li, Zhu and Jin

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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Immunohistochemical detection of endoplasmic reticulum stress related proteins in tumor tissues. (A–D) The expression of endoplasmic reticulum stress related proteins (PERK, Calnexin, Ero1-Lα, BIP) in tumors’ tissue were detected by immunocytochemistry (400×). Data are presented as mean ± SD, **p < 0.01.