Funding for this research was provided by:
863 Program (2015AA020507)
973 program (2015CBB56000)
National Natural Science Foundation of China (11331011, 11771028, 91630314)
National Natural Science Foundation of China (81573259)
Article History
Received: 9 August 2019
Accepted: 25 June 2020
First Online: 8 August 2020
Ethics approval and consent to participate
: No human, animal or plant experiments were performed in this study, and ethics committee approval was therefore not required.
: Not applicable.
: The authors declare that they have no competing interests.