Liu, Lixia
Wang, Weiqiao
Yang, Jun
Zhang, Yan
Zhang, Guiyin
Ma, Zhiying
Wang, Xingfen
Funding for this research was provided by:
National Natural Science Foundation of China (No. 31171597)
Hundreds of Innovative Talents Project of Hebei Province
Article History
Received: 6 April 2018
Accepted: 25 August 2018
First Online: 8 October 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.