Funding for this research was provided by:
National Natural Science Foundation of China (21676221, 31871779)
Natural Science Foundation of Fujian Province (2017J01077)
National Key Research and Development Plan of China (2016YFD0400205)
Received: 10 March 2019
Accepted: 27 August 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: Not applicable.
: All the authors consent to publication.
: The authors declare that they have no competing interests.