Li, Yang
Lu, Qi
Wang, Yu
Ma, Shuangge
Funding for this research was provided by:
MOE Project of Key Research Institute of Humanities and Social Sciences at Universities (16JJD910002)
National Natural Science Foundation of China (71771211, 81774146)
fund for building world-class universities (disciplines) of Renmin University of China (0000)
Article History
Received: 10 September 2019
Accepted: 26 March 2020
First Online: 6 April 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.