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. 2021 Apr 10;13(8):1230. doi: 10.3390/polym13081230

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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 (https://creativecommons.org/licenses/by/4.0/).

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Percentage of the contribution of each mechanism during the drug release from PU films with the three different percentages of the drug at the flow rate of 7.5 mL/s.