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Article History

Received: 5 January 2021

Accepted: 9 March 2021

First Online: 7 April 2021

Declarations

:

: All the authors have declared that no conflict of interest exists.

: All the procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee at which the studies were conducted (approval number at Hyogo Prefectural Kobe Children’s Hospital, Rei 2-14) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

: Informed consent was obtained from the parents of the patient included in this study.