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Authors
Yang, Zhen-Hang
Zheng, Shen-Zhou http://orcid.org/0000-0002-7909-0517
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (11371050)
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Article History
Received: 6 December 2017
Accepted: 20 February 2018
First Online: 9 March 2018
Competing interests
: The authors declare that they have no competing interests.
