Han, Haibin
Zhong, Zhangqi
Wen, Changcun
Sun, Huiguo
Funding for this research was provided by:
National Social Science Foundation of China (14BTJ014)
Article History
Received: 10 April 2018
Accepted: 3 September 2018
First Online: 13 September 2018
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: Not applicable.
: Not applicable.