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Article History

Received: 27 January 2021

Revised: 17 May 2021

Accepted: 23 May 2021

First Online: 31 May 2021

Declarations

:

: The Ethics Committee on Human Subjects of Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China approved this study.

: Informed consent was obtained from the patients and their parents.

: None.