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Authors
Chen, Sizhe
Wu, Rong
Chen, He
Ma, Wenbei
Du, Shaolin
Li, Chao
Lu, Xiaohe
Feng, Songfu
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Article History
Received: 26 January 2021
Accepted: 14 April 2021
First Online: 27 May 2021
Declarations
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: The study was approved by Zhujiang hospital’s institutional ethics committee and adhered to the tenets of the Declaration of Helsinki. All parents or guardians of the recruited infants provided written informed consent prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.
