Funding for this research was provided by:
National Natural Science Foundation of China (31900760)
Article History
Accepted: 1 June 2022
First Online: 13 June 2022
Declarations
:
: All authors declared that they had no conflict of interest. This study was performed in accordance with the ethical standards of the Declaration of Helsinki. In addition, all participates was voluntary and confidential, and the anonymous character of their answers.