Liu, Fang https://orcid.org/0000-0002-1968-0849
Zhao, Qian
Jia, Zhenhua
Song, Cong
Huang, Yali
Ma, Hong
Song, Shuishan https://orcid.org/0000-0002-9631-6450
Funding for this research was provided by:
National Basic Research Program of China (2015CB150600)
National Science Foundation of China (31270880)
Natural science Foundation of Hebei (C2015302020)
Article History
Received: 12 July 2019
Accepted: 30 December 2019
First Online: 28 January 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.