Dong, Yanhan
Zhao, Qian
Liu, Xinyu
Zhang, Xiaofang
Qi, Zhongqiang
Zhang, Haifeng
Zheng, Xiaobo
Zhang, Zhengguang
Article History
Received: 9 September 2014
Accepted: 4 February 2015
First Online: 19 February 2015
Change Date: 3 October 2018
Change Type: Correction
Change Details: Following the publication of this article [1], the authors noticed that they mistakenly introduced duplicate images in Figure 6A during the preparation of figures. They apologize for any confusion that brought to the readers and have corrected the figure. This correction does not change any statement or conclusion drawn from the data.