Funding for this research was provided by:
National Natural Science Foundation of China (61773194, 61304084)
Natural Science Foundation of Fujian Province (2018J01542)
Fujian Provincial Training Foundation For “Bai-Qian-Wan Talents Engineering”
Program for New Century Excellent Talents in Fujian Province University
Article History
First Online: 4 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.