Su, Qing
Fan, Lijun
Funding for this research was provided by:
National Social Science Foundation of China (23CGL072)
Article History
Accepted: 27 March 2024
First Online: 21 April 2024
Declarations
:
: The authors declare no conflicts of interest.
: Ethical approval was granted by the Institutional Review Board (IRB) of Peking University. The IRB approval number for the main household survey including anthropo-metrics is IRB00001052-11015, and the IRB approval number for biomarker collection is IRB00001052-11014.