Feng, Yan-Mei
Wu, Xiang-Feng http://orcid.org/0000-0003-2340-7404
Wang, Zhi-Qiang
Yang, Yun-Feng
Su, Jun-Zhang
Zhang, Jia-Rui
Jia, Yun-Ning
Zhang, Mi
Sun, Xiu-Guo
Funding for this research was provided by:
Natural Science Foundation of Hebei Province (B2016210111)
Article History
Received: 21 December 2018
Accepted: 1 April 2019
First Online: 4 April 2019
Compliance with ethical standards
:
: The authors state that they have no conflict of interest.