Zhao, Litong
Zhao, Tao
Yuan, Rong
Funding for this research was provided by:
Major Project of the National Social Science Foundation of China (19ZDA082)
Ministry of Education of Humanities and Social Science Research Fund Plan (15YJA790091)
Major Program of Social Science Foundation of Tianjin Municipal Education Commission (2016JWZD04)
Independent Innovation Foundation of Tianjin University (2017XSZ-0055)
Chongqing Social Science Planning Project (2018BS62)
Article History
Received: 13 March 2020
Accepted: 11 June 2020
First Online: 23 June 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.