Funding for this research was provided by:
National Key R&D Program of China (2017YFD0200100; 2017YFD0200103)
National Natural Science Foundation of China (31800202)
Province Key R&D Program of Hunan (2018NK1010)
China Postdoctoral Science Foundation (2018M630900)
Innovative Research Groups of the Natural Science Foundation of Hunan Province (2019JJ10003)
Article History
Received: 2 August 2019
Accepted: 3 December 2019
First Online: 16 December 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.