Xu, Shengnan
Chen, Ligang
Ma, Ling
Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (No. 2572017EB08)
Harbin science and technology innovation talent research special funds (2016RAQXJ151)
Natural Science Foundation of Heilongjiang Province (JJ2018ZR0081)
Article History
Received: 21 June 2018
Accepted: 20 September 2018
First Online: 3 October 2018
Compliance with ethical standards
: The author(s) declare that they have no competing interests.