Wang, Xiao-Qiu
Zhou, Wen-Jie
Hou, Xin-Xin
Fu, Qiang
Li, Da-Jin
Article History
Received: 15 July 2017
Revised: 12 February 2018
Accepted: 12 February 2018
First Online: 27 March 2018
Change Date: 22 January 2019
Change Type: Correction
Change Details: In this article, published online 27 March 2018, in the “ACKNOWLEDGEMENTS”, it should be supplemented as follows: “This study was funded by a grant from the National Natural Science Foundation of China, number 81490744, awarded to Da-Jin Li.” The authors regret the omission.
Competing interests
: The authors declares no competing interests.