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Article History

Received: 14 August 2025

Accepted: 12 January 2026

First Online: 21 January 2026

Declarations

:

: The CLHLS was approved by the research ethics committee of Peking University (IRB00001052-13074). The participants provided their written informed consent to participate in this study. And informed consent was obtained from literate participants and legal guardian(s)/next of kin of illiterate participants. All methods were carried out in accordance with relevant guidelines and regulations.

: Not applicable.

: The authors declare no competing interests.