The authors apologise for errors in the corresponding authors details given on page 1 of the article. Below is the correct information of the corresponding author and email address :
1) Wei-Wei Xue, Huan-Nan Wang, Zhi-Meng Wang, Meng-Xi Qiu, Jing Che, Feng-Jiao Deng* and Jiang-Dong Liu*
2) *All correspondence to: Feng-Jiao Deng and Jiang-Dong Liu. e-mail: firstname.lastname@example.org
3) All authors are from the same one laboratory. The second laboratory was superfluous and should be deleted.