Funding for this research was provided by:
National Natural Science Foundation of China (81902342)
Jilin Province Department of Finance (2019SCZT005, 2019SRCJ007, 2020SCZT007)
Health Commission of Jilin Province (2019Q002)
Jilin University (419161900034)
Article History
Received: 7 May 2021
Revised: 19 August 2021
Accepted: 29 August 2021
First Online: 10 November 2021
Declarations
:
: The authors declare no competing interests.