Xu, Tingting http://orcid.org/0000-0002-4737-3942
Liu, Meichun http://orcid.org/0000-0001-9471-7181
Wang, Xiaolu http://orcid.org/0000-0001-6187-3516
Funding for this research was provided by:
China Major Project of National Social Science Foundation (14ZDB155)
Article History
Accepted: 13 February 2022
First Online: 28 February 2022
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.