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. 2018 Nov 9;10(4):222. doi: 10.3390/pharmaceutics10040222

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© 2018 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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Swelling-erosion tests. (A) Experimental data $W (t) / W_{0}$ vs. t (min). (B) Experimental data and model predictions $W (τ) / W_{0}$ vs. the dimensionless time $τ$ . The maximum swelling degree is $W^{m a x} / W_{0} ≃ 3.5$ with and without HP- $β$ -CD.