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Publisher's Note: Error in Figure 5

Posted by PLOS_ONE_Group on 15 Sep 2011 at 22:34 GMT

(in green).
http://plosone.org/article/info:doi/10.1371/journal.pone.0020843#pone-0020843-g005

The authors have found an error in Figure 5. The correct Figure 5 can be viewed here:http://www.plosone.org/corrections/pone.0020843.g005.cn.tif

No competing interests declared.