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. 2014 Nov 6;15(11):20339–20354. doi: 10.3390/ijms151120339

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© 2014 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 license (http://creativecommons.org/licenses/by/4.0/).

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Folate receptor alpha expression and transfection efficiency on A549 cells. (A) Folate receptor alpha expression on A549 cells by flow cytometry and (B) The transfection efficiencies of Ch₂-PEG_n-CLs and F-Ch₂-PEG_n-CLs on A549 cells.