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Authors
Song, Yan
Zhang, Ying
Meng, Haohao
Liu, Jie
Gu, Wenwen
Wang, Xiru
Sang, Zhongna https://orcid.org/0000-0002-0234-7214
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Article History
Received: 15 November 2024
Accepted: 5 March 2025
First Online: 18 March 2025
Declarations
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: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Tianjin Medical University (TMUhMEC2021003).
: All toddlers in the study received informed consent from their parents.
: All authors agreed to publish this study.
: The authors declare no competing interests.
