Wu, Ke http://orcid.org/0000-0003-2131-9718
Qin, Zhaogang http://orcid.org/0000-0001-9561-1987
Zhang, Xunshuang http://orcid.org/0000-0002-6816-1295
Guo, Ruichen http://orcid.org/0000-0003-3774-9237
Ren, Xiaozhen http://orcid.org/0000-0002-0049-4069
Pu, Xipeng http://orcid.org/0000-0002-8225-5706
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2017PB003)
PhD early development program of Liaocheng University (318051505)
Article History
Received: 21 September 2019
Accepted: 9 December 2019
First Online: 16 December 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interests.