Funding for this research was provided by:
National Natural Science Foundation of China (61573075, 61803052)
Natural Science Foundation of Chongqing (cstc2017jcyjBX0001)
the Foundation for High-level Talents of Chongqing University of Art and Sciences (2017RJD13)
Scientific Research and Technology Development Program of Guangxi (BS2019027)
Article History
Received: 19 December 2018
Accepted: 17 November 2019
First Online: 27 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.