Zhang, Haidong
Zhan, Jianming
He, Yanping
Funding for this research was provided by:
NNSFC (11461025, 11561023)
Natural Science Foundation of Gansu Province (1606RJZA003)
Research Project Funds for Higher Education Institutions of Gansu Province (2016B-005)
Fundamental Research Funds for the Central Universities of Northwest MinZu University (31920170010, 31920180116)
Article History
First Online: 21 February 2019
Compliance with ethical standards
:
: The author declares that there is no conflict of interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.