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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:
The humanities and social science research project of the Chongqing Education Committee (17SKG192)
The humanities and social science research project of the Chongqing Education Committee (16SKGH054)
The Key social science research project of the Chongqing University of Posts and Telicommunications (2017KZD08)
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Article History
First Online: 19 November 2018
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.
