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. 2018 Mar 2;23(3):557. doi: 10.3390/molecules23030557

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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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Effects of alkaloids and the positive control with verapamil on rhodamine (Rho) 123 retention in Caco-2 cells. Cells treated with DMSO were used as a solvent control. Data are presented as the mean ± SD.