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Article History

Received: 11 July 2021

Accepted: 9 September 2022

First Online: 24 September 2022

Declarations

:

: All procedures conducted in this study using human data were in accordance with the Declaration of Helsinki. Because this retrospective study utilized all patients’ information after thorough de-identification and had no harm to the involved patients, Institutional Review Board of Asan Medical Center (2013–0866) approved exemption from informed consent.

: Not applicable.

: All the authors declare that they have no conflicts of interest.