Tang, Yan http://orcid.org/0000-0003-4086-0040
Funding for this research was provided by:
National Natural Science Foundation of China (11471059)
Science and Technology Research Project of Chongqing Municipal Education Commission (KJ 1706154)
Research Project of Chongqing Technology and Business University (KFJJ2017069)
Article History
Received: 20 September 2018
Accepted: 15 January 2019
First Online: 22 January 2019
Competing interests
: The authors declare that they have no competing interests.