Liu, Chao
Yang, Jing
Wu, Jinqiu
Funding for this research was provided by:
National Natural Science Foundation of China (61672179, 61370083, 61402126, 61901134)
Natural Science Foundation of Heilongjiang Province (F2015030, F201336)
Fundamental Research Funds in Heilongjiang Provincial Department of Education (No. 135109247, No.135109243, No.12541872, No. 135209239)
Article History
Received: 15 July 2019
Accepted: 30 October 2019
First Online: 3 February 2020
Competing interests
: The authors declare that they have no competing interest.