Niu, Peifeng
Li, Jinbai http://orcid.org/0000-0002-4981-5302
Chang, Lingfang
Zhang, Xianchen
Wang, Rongyan
Li, Guoqiang
Funding for this research was provided by:
National Natural Science Foundation of China (61573306)
National Natural Science Foundation of China (61403331)
Natural Science Foundation of Hebei Province (F2016203427)
Article History
First Online: 16 May 2018
Compliance with Ethical Standards
:
: All authors declares that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.