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Article History

Received: 2 November 2021

Accepted: 7 December 2021

First Online: 7 January 2022

Declarations

:

: In accordance with the Declaration of Helsinki, this retrospective study was approved by the Ethics Committee of Medical Plaza Daido Central (approval number 34-2020). Because only medical records were reviewed, patients enrolled in this study were exempted from signing the informed consent.

: Regarding publication of the research results, we explained that we could not reveal personal information and obtained verbal consent from all target patients.

: The authors declare no conflict of interest.