Huo, Liang’an http://orcid.org/0000-0002-5189-3609
Li, Xiao
Funding for this research was provided by:
Project of Humanity and Social Science foundation of University of Shanghai Science and Technology (SK17ZD02, SK18ZD03)
Support Program for Longyuan Youth and Fundamental Research Funds for the Universities of Gansu Province (2017ECNV-KXK016)
National Natural Science Foundation of China (71774111, 61702331, 71303157)
Article History
Received: 17 January 2019
Accepted: 14 April 2019
First Online: 30 April 2019
Competing interests
: The authors declare that they have no competing interests.