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Article History

Received: 29 May 2023

Revised: 15 October 2023

Accepted: 17 October 2023

First Online: 7 November 2023

Declarations

:

: The authors have no conflict of interest to disclose with respect to this paper.

: This study was conducted according to the principles of the Declaration of Helsinki, and it was approved by the Institutional Review Board of Otaru General Hospital.

: This study is a retrospective study; therefore, the information has already been disclosed on the website of the institution by out–out method.