Liu, Li
Du, Chao
Sun, Yan
Liu, Jianqing
Pu, Zihan
Liu, Xiaoguang
Funding for this research was provided by:
National Natural Science Foundation of China (31560598, 81760590)
Inner Mongolia Natural Science Foundation (2015MS0321, 2019MS03094)
Inner Mongolia Study Abroad Back Area Staff Research Start Up Fund Project (2015-339)
Article History
Received: 4 May 2019
Accepted: 19 November 2019
First Online: 23 December 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.