Funding for this research was provided by:
National Natural Science Foundation of China (61773296)
Guangdong Science and Technology Department (2017A010101037)
Guangdong academy of science (2019GDASYL-0103077)
Article History
First Online: 1 October 2019
Compliance with ethical standards
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: The authors declared that they have no conflicts of interest to this work. We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.