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Authors
Ren, Shitong https://orcid.org/0000-0003-2140-6774
Zhang, Shaoyue https://orcid.org/0000-0002-5530-6299
Zhao, Weibo https://orcid.org/0000-0001-5029-6047
Wang, Wei https://orcid.org/0000-0002-3063-9767
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Funding
Funding for this research was provided by:
Natural Science Foundation of Hebei Province (E2018210079)
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Article History
Received: 24 June 2019
Accepted: 17 September 2019
First Online: 23 September 2019
Compliance with ethical standards
:
: There author declares that they have no conflict of interest.
