Wang, Xiangyu
Ge, Xuejun
Liao, Wang
Cao, Yong
Li, Ran
Zhang, Fang
Zhao, Bin
Funding for this research was provided by:
National Natural Science Foundation of China (81800499)
National Oral Health Epidemiology Survey (201502002)
Article History
Received: 20 April 2021
Accepted: 13 July 2021
First Online: 11 August 2021
Declarations
:
: This work was approved by the Institutional Ethical Committee of Shanxi Medical University. Informed consent including signature was obtained from each participant.
: All authors have read the manuscript and approved of the final version.
: The authors declare there is no conflict of interest in this study.