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Authors
Nan, Yongqing
Li, Qin
Yu, Jinxiang
Cai, Haiya
Zhou, Qin
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Funding
Funding for this research was provided by:
National Social Science Foundation of China (17ZDA038, 15AJL004)
National Natural Science Foundation of China (71773063)
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Article History
Received: 4 December 2018
Accepted: 17 July 2019
First Online: 24 July 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest.
