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. 2011 Sep 21;6(9):e24179. doi: 10.1371/journal.pone.0024179

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Seo et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A) Anchorage-independent cell growth in soft agar. HeLa cells were grown in soft agar for 21 days in the presence of the indicated concentrations of N4A and YN1 respectively (20×). (B) Statistical analysis of the experiment. Columns, mean (n = 5); bars, SD.