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Article History

Received: 22 June 2021

Accepted: 17 August 2021

First Online: 29 August 2021

Declarations

:

: All authors declare no potential conflict of interest.

: This study was approved by the Seoul National University Children Hospital Committee Institutional Review Board (IRB 2012–190-1186). The requirement for patient consent was waived owing to the retrospective design of the study.

: All authors contributed to the conception and interpretation of data, drafting of the manuscript, and revision and final approval of the manuscript. All authors have read the manuscript and approved its submission to the Pediatric cardiology. None of the authors have any financial relationships with any company or any other bias or conflict of interest.

: All authors consented the manuscript for publication to the Pediatric cardiology.