Bu, Xiangwei http://orcid.org/0000-0001-5783-6659
Lei, Humin
Funding for this research was provided by:
National Natural Science Foundation of China (61603410)
Young Talent Fund of University Association for Science and Technology in Shaanxi, China (20170107)
Article History
Received: 23 November 2017
Accepted: 22 June 2018
First Online: 30 June 2018
Compliance with ethical standards
:
: The author(s) declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.