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Authors
Meng, Chao https://orcid.org/0000-0001-9663-5606
Li, Xu
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Funding
Funding for this research was provided by:
Foundation of Liaoning Province Education Administration (L201612)
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Article History
Received: 6 August 2019
Accepted: 20 November 2019
First Online: 28 November 2019
Compliance with ethical standards
:
: The authors declare that there are no conflicts of interest regarding the publication of this paper.
: The authors declare that there is no research involving human participants and/or animals in the contained of this paper.
