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Corrections

Posted by nancy2014 on 16 Dec 2014 at 06:11 GMT

I am sorry for all readers that we found there were errors in Fig 4 and Fig 6. In Fig 4, the "δΊ†' was additional wrong characteristic and the P value of Both Sites was 0.000. In Fig 6, the P value was 0.009. I am very sorry for bring you misunderstandings and inconvenience.
Thank you for your interest in our work. Although there were errors in Fig, all results and conclusions were unchanged and believable.

No competing interests declared.