Funding for this research was provided by:
Young Scientists Fund (31501802)
Fujian Provincial Department of Science and Technology (2014J01382)
Received: 28 February 2019
Accepted: 28 October 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: This study does not contain any research requiring ethical consent or approval.
: Not applicable.
: The authors declare that they have no competing interests.