Funding for this research was provided by:
National Natural Science Foundation of China (81670750)
National Natural Science Foundation of China (81971191)
National Natural Science Foundation of China (61627807)
National Key Research and Development Program of China (2016YFC1305703)
Guangxi Natural Science Foundation (2014GXNSFDA118030)
Article History
Received: 29 January 2020
Revised: 19 June 2020
Accepted: 29 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.