Tan, Xili
Liu, Wei
Funding for this research was provided by:
National Natural Science Foundation of China (11171003)
Foundation of Jilin Educational Committee of China (2015-155)
Article History
Received: 8 February 2018
Accepted: 6 June 2018
First Online: 14 September 2018
Competing interests
: The authors declare that there is no conflict of interest regarding the publication of this paper. We confirm that the received funding mentioned in the “Acknowledgment” section did not lead to any conflict of interests regarding the publication of this manuscript. We declare that we do not have any commercial or associated interest that represents a conflict of interest in connection with the work submitted.