Wang, Su
Wang, Qian
Yan, Xianliang
Article History
Received: 31 October 2022
Accepted: 23 January 2024
First Online: 19 March 2024
Declarations
:
: The requirement of ethical approval for this was waived by the Institutional Review Board of Beijing Anzhen Hospital, Capital Medical University, because the data was accessed from CHNS (a publicly available database). All individuals provided written informed consent before participating in the study. All methods were carried out in accordance with relevant guidelines and regulations (declaration of Helsinki).
: Not applicable.
: The authors declare no competing interests.