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Authors
Ma, Jianling
Liu, Chang https://orcid.org/0000-0001-8947-9705
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Funding
Funding for this research was provided by:
Humanities & Social Sciences Program of Chongqing Education Committee (16SKGH054)
Humanities & Social Sciences Program of Chongqing Education Committee (17SKG192)
the key Social Sciences Program of Chongqing University of Posts and Telecommunications (2017KZD08)
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Article History
First Online: 27 May 2019
Compliance with Ethical Standards
:
: On behalf of all authors, the corresponding author states that there is 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.
