Funding for this research was provided by:
National Natural Science Foundation of China (31661143002, 31771839 and 31701123)
Yunnan Applied Basic Research Projects (2016FA011)
Article History
Received: 18 September 2019
Accepted: 14 January 2020
First Online: 30 January 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.