Hou, Xinxin
Chen, Hongping
Liang, Yinghua
Yang, Xu
Wei, Yonglin
Funding for this research was provided by:
Foundation of Hebei Province of China (B2017209111)
Foundation of Hebei (in China) Education Department (ZD2015116)
Article History
Received: 11 September 2019
Accepted: 28 October 2019
First Online: 2 November 2019
Compliance with Ethical Standards
:
: We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.