Xiong, Guang
Guo, Liuqing
Li, Liwei
Liang, Min
Article History
Received: 2 February 2024
Accepted: 1 May 2024
First Online: 9 May 2024
Declarations
:
: The studies involving human participants were reviewed and approved by National Center for Health Statistics. The participants provided their written informed consent to participate in this study.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.