Gai, Guanming
Liu, Qiang
Na, Yang
Zhou, Mingjun
Funding for this research was provided by:
National Natural Science Foundation of China (11571137, 11601182)
Natural Science Foundation of Guangdong Province (2016A030313048)
Excellent Young Teachers Program of Guangdong Province
Article History
Received: 27 May 2018
Accepted: 2 December 2018
First Online: 19 December 2018
Competing interests
: The authors declare that they have no competing interests.