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. 2021 Jul 8;86(7):800–817. doi: 10.1134/S0006297921070026

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© The Author(s) 2021

Open access.This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/.

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Fig. 5. — Structural variants of lipoplexes: a) multilayer lamellar structure; b) inverted hexagonal structure. Adapted with permission from the review by Ewert et al. [109]. Copyright Taylor & Francis, 2005.