Qin, Jun
Zhang, Jianan
Liu, Duan
Yin, Changcheng
Wang, Fengmin
Chen, Pengyin
Chen, Hao
Ma, Jinbing
Zhang, Bo
Xu, Jin
Zhang, Mengchen
Funding for this research was provided by:
Natural science fund for distinguished young scholars of Hebei Province (C2014301035)
Article History
Received: 5 December 2015
Accepted: 15 March 2016
First Online: 5 April 2016
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: This article does not contain any studies with human participants performed by any of the authors.