Yang, Youlong
Ding, Mengxiao http://orcid.org/0000-0001-7402-5188
Funding for this research was provided by:
National Natural Science Foundation of China (61573266)
Article History
Received: 18 April 2017
Accepted: 28 December 2017
First Online: 5 March 2018
Compliance with ethical standards
:
: We wish to confirm that there are no known conflicts of interest associated with this publication. We also confirm that the manuscript has been read and approved by all named authors and that there are no other persons who satisfied the criteria for authorship but are not listed.