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. 2021 Dec 7;9:798882. doi: 10.3389/fbioe.2021.798882

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Copyright © 2021 Cao, Zhu, Wang, Wang, Zhang and Cheng.

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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Schematic model of a pH-responsive shell-core nanoparticles to overcome AZD9291 drug resistance. Reproduced with permission (Gu et al., 2021). Copyright 2021, Wiley.