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Funding
Funding for this research was provided by:
Zhejiang Philosophy and social science Planning Foundation (19NDJC069YB)
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Article History
First Online: 29 March 2019
Compliance with Ethical Standards
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: The authors declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with ethical standards of institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was given to all participants in order to get their allowance for this study.
