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Article History

Received: 28 August 2024

Accepted: 12 January 2025

First Online: 7 February 2025

Declarations

:

: The Ethics Committee for Clinical Research of Tianjin Women and Children’s Health Center approved the study and analysis plan. Since this is a retrospective analysis of data routinely collected from children, written informed consent was not applicable. The Ethics Committee for Clinical Research of Tianjin Women and Children’s Health Center agreed to waive the need for written informed consent from all participants in our study.

: Not Applicable.

: The authors declare that they have no competing interests.