Xu, Shuo
Zhang, Huiping
Wang, Jingxin
Funding for this research was provided by:
fund for building world-class universities (disciplines) of Renmin University of China (2020)
Article History
First Online: 21 April 2020
Compliance with Ethical Standards
:
: The research procedure and data collection method were approved by the research ethics committee in the School of Sociology and Population Studies at Renmin University of China.
: All participants have been provided the purpose and procedures of this survey, and they were informed that they were voluntary and can quit anytime. Each participant signed an informed consent before the survey.
: The authors declare that they have no conflict of interest.