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Publisher's Note: Error in Figure 1

Posted by PLOS_ONE_Group on 22 Nov 2011 at 00:17 GMT

Figure 1A
http://plosone.org/article/info:doi/10.1371/journal.pone.0026320#article1.body1.sec3.sec1.p2

In Figure 1, graph B was replaced with a duplicate of graph C. The correct Figure 1 can be viewed here: http://www.plosone.org/corrections/pone.0026320.g001.cn.tif

No competing interests declared.