Xu, Changlin
Wang, Guoyin
Funding for this research was provided by:
National Natural Science Foundation of China (61562001,11601012,61662001,61462002)
Research Project of Beifang University of Nationalities (2016SXKY05)
Science and Technology Research Project of Ningxia Higher Educational Institution (NGY2016143)
National Natural Science Foundation of China (61572091,61772096.)
National Key Research and Development Program of China (2016YFB1000905)
Article History
Received: 13 February 2017
Accepted: 3 July 2019
First Online: 17 July 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.