Du, Xingqiang
Funding for this research was provided by:
the National Natural Science Foundation of China (NSFC-71572162)
the Key Project of Key Research Institute of Humanities and Social Science in Ministry of Education (16JJD790032)
Article History
Received: 19 October 2016
Accepted: 10 May 2017
First Online: 22 May 2017
Compliance with Ethical Standards
:
: The author declares that he has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.