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Authors
Mao, Ying
Zhang, Ning
Zhu, Bin
Liu, Jinlin
He, Rongxin
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Funding
Funding for this research was provided by:
National Social Science Fund of China (17ZDA079)
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Article History
Received: 30 December 2018
Accepted: 23 August 2019
First Online: 2 September 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
