Huang, Guogui http://orcid.org/0000-0001-5772-0584
Guo, Fei http://orcid.org/0000-0001-9371-0463
Chen, Gong
Funding for this research was provided by:
the Ministry of Science and Technology of China (2018YFC2000603)
the National Office for Philosophy and Social Science of China (20ZDA076)
the Committee of Science and Technology of Beijing (Z191100004419001)
Article History
Accepted: 29 July 2021
First Online: 5 August 2021
Declarations
:
: No conflict of interest has been declared by the authors.
: The study was based on publicly-accessible database so no separate approval was required for this study.