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. 2020 Aug 7;13(16):3476. doi: 10.3390/ma13163476

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© 2020 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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Diameter distribution of curcumin/usnic acid-loaded fibers based on hyaluronic acid: (a) under 22 kV; (b) under 28 kV. Note, than for measuring diameter distribution the several images were utilized.