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Authors
Lin, Jian
An, Dexiang
Lu, Yun
Yan, Dongmei
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Article History
Received: 21 November 2021
Accepted: 29 July 2022
First Online: 19 September 2022
Declarations
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: Institutional Review Board (IRB)/Ethics Committee approval was obtained by the Human Medical Ethics Committee of Lianyungang Maternal and Child Health Hospital. The authors confirm that the research followed the tenets of the Declaration of Helsinki and that informed consent was obtained from at least one parent after explanation of the nature and possible consequences of the study. For children aged 16 to 18, informed consent was also obtained from themselves.
: Not applicable.
: The authors declare that they have no competing interests.
