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. 2014 Oct 8;9(1):560. doi: 10.1186/1556-276X-9-560

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Copyright © 2014 Yi et al.; licensee Springer.

This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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In vitro cell viability of the hybrid PLA NPs/MMC-SPC. Concentration-dependent cell viability of H₂₂ cells treated with the PLA NPs/MMC-SPC, PLA NPs/MMC, and free MMC after incubation of 24 h. Data are presented as mean ± SD (n = 6). *P < 0.05 (two-tailed Student's t-test).