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Article History

Received: 21 July 2022

Accepted: 9 March 2023

First Online: 17 March 2023

Declarations

:

: This study was reviewed by the Chungnam National University Hospital Institutional Review Board and was approved for deliberation exemption (IRB approval number: 2020–06-083). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Owing to the retrospective nature of this study, patient informed consent was not required.

: The requirement for obtaining written consent was waived because of the retrospective design of the study.

: The authors declare that they have no competing interests.