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Publisher's Note: Error in Table 7.

Posted by PLOS_ONE_Group on 11 Sep 2012 at 21:13 GMT

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http://plosone.org/article/info:doi/10.1371/journal.pone.0037887#pone-0037887-t007

There were errors in the formatting of Table 7. The correct version of Table 7 can be seen here: http://www.plosone.org/corrections/pone.0037887.t007.cn.tif [^]

No competing interests declared.