Zeng, Zhihe
Xiao, Zhaoyang
Article History
Received: 27 May 2024
Accepted: 3 July 2025
First Online: 29 July 2025
Declarations
:
: The ethics of the study was approved by the Institutional Review Board of Peking University. The Institutional Review Board approval number for the main household survey was IRB00001052-11015 and for the biomarker collection was IRB00001052-11014. The participants provided their written informed consent to participate in this study.
: Not applicable.
: The authors declare no competing interests.