Huo, Jinkang
Hu, Mingzheng
Li, Shaojie
Article History
Received: 21 May 2023
Accepted: 15 November 2023
First Online: 23 November 2023
Declarations
:
: This is secondary data analysis. No human beings or animals were involved. The secondary data used was de-identified data. The dataset has been stripped of all identifying information and there is no way that it could be linked back to the subjects from whom it was originally collected. The CLDS database was ethically approved by the Biomedical Ethics Committee of Sun Yat-sen University.
: The authors declare no competing interests.