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. 2011 May 26;6(5):e19774. doi: 10.1371/journal.pone.0019774

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Zhao 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) Correlation analysis of 20 libraries by Pearson's correlation coefficient. (B) Systematic cluster analysis of 20 libraries by Cluster 3.0 and TreeView software.