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. 2018 Oct 24;10(4):203. doi: 10.3390/pharmaceutics10040203

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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/).

PMC Copyright notice

A 3D computer-aided design (CAD) model of capsule-shaped oral drug delivery device (a) multilayer device (b) two-compartment caplet (Duocaplet) (Reproduced with permission from reference [83], American Chemical Society (ACS), 2015).