Liu, Chao
Zhao, Jing
Liu, Jiao
Guo, Xuan
Rao, Deming
Liu, Haiping
Zheng, Ping http://orcid.org/0000-0001-9434-9892
Sun, Jibin
Ma, Yanhe
Funding for this research was provided by:
Tianjin Natural Science Foundation (18JCQNJC10300)
National Natural Science Foundation of China (21606251)
the Key Research Program of the Chinese Academy of Sciences (KFZD-SW-212)
Youth Innovation Promotion Association of CAS (2015137)
Science and Technology Project of Tianjin (15PTCYSY00020 and 14ZCZDSY00058)
Article History
Received: 30 July 2018
Revised: 14 September 2018
Accepted: 19 September 2018
First Online: 12 October 2018
Compliance with ethical standards
: This article does not contain any studies with human participants or animals performed by any of the authors. All authors confirm that ethical principles have been followed in the research as well as in manuscript preparation, and approved this submission.
: The authors declare that they have no conflict of interest.