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Authors
Xu, Fuzhen https://orcid.org/0000-0001-8170-4015
Cui, Wei
Lawrence, Peter J. https://orcid.org/0000-0001-6181-433X
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Funding
Funding for this research was provided by:
the Advantage Discipline Projects of Social Sciences Planning of Shandong Province, P. R. China (19BYSJ34)
the Advantage Discipline Projects of Social Sciences Planning of Shandong Province, P. R. China (19BYSJ34)
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Article History
First Online: 30 November 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
