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. 2021 Mar 19;11(3):792. doi: 10.3390/nano11030792

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Photostability of all-trans retinoic acid in free form and entrapped within liposomes as a function of the duration of UV-exposition (h). Reprinted with permission from [107]. Copyright © 2017 Elsevier Ltd.