Li, Ning
He, Yingqing
Wang, Cong
Chen, Yancheng
Xu, Jianhui
Funding for this research was provided by:
National Natural Science Foundation of China (61771486)
National Natural Science Foundation of China (61571463)
Article History
Received: 13 March 2018
Accepted: 11 October 2018
First Online: 6 November 2018
Competing interests
: The authors declare that they have no competing interests.
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