Funding for this research was provided by:
National Natural Science Foundation of China (61571071)
Nature Science Foundation Project of Chongqing (cstc2016jcyjA0543)
Nature Science Foundation Project of Chongqing (cstc2017jcyjXB0037)
Article History
Received: 16 January 2018
Revised: 22 June 2018
Accepted: 10 August 2018
First Online: 16 August 2018