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Article History

Received: 12 April 2021

Accepted: 26 April 2021

First Online: 1 May 2021

Declarations

:

: This study was approved by the Institutional Review Board of Chuncheon Sacred Heart Hospital (2021-03-003), which waived the need for informed consent for the use of patient data due to the retrospective nature of the study. All methods were performed in accordance with the relevant guidelines and regulations

: Not applicable

: The authors declare no competing interests.