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Authors
Lei, Hongdou
Khan, Imran
Li, Shiping
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Funding
Funding for this research was provided by:
National Natural Social Science Foundation of China (17BJY067)
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Article History
Received: 29 July 2019
Accepted: 15 January 2020
First Online: 28 January 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
