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. 2021 May 10;12:679602. doi: 10.3389/fphar.2021.679602

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Copyright © 2021 Han, Peng, Qiu, Li, Ruan, He and Yuan.

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 diagram of strategies of different MN-based cancer vaccines. Various types of MNs have been investigated for the delivery of cancer vaccines, including solid MNs (A), dissolving MNs (B), coated MNs (C) and hollow MNs (D).