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. 2020 May 1;15:3099–3120. doi: 10.2147/IJN.S210320

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© 2020 Chen et al.

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Schematic representation of pH-triggered release of IM-Chol liposomes. Reprinted from Int J Pharm. 518. Ju L, Cailin F, Wenlan W, et al. Preparation and properties evaluation of a novel pH-sensitive liposomes based on imidazole-modified cholesterol derivatives, 213–219, Copyright 2017, with permission from Elsevier.⁴²