Zhang, Donghang
Zheng, Wenhao
Li, Keyang
Article History
Received: 8 November 2023
Accepted: 15 April 2024
First Online: 24 April 2024
Declarations
:
: The authors declare no competing interests.
: This study involved a secondary analysis of the data from the CLHLS. The CLHLS obtained ethical approval and informed consent and was approved by the research ethics committees of Peking University (IRB00001052–13074).
: Not applicable.