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Authors
Shimizu, Takeshi
Sato, Hirotaka
Sanada, Takahiro
Saito, Masato
Mitsui, Nobuyuki
Hiroshima, Satoru
Kinoshita, Manabu
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Article History
Received: 10 January 2026
Accepted: 12 February 2026
First Online: 19 February 2026
Declarations
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: This study was approved by the institutional review board of Asahikawa Medical University (Approval No. 21041) and was conducted in accordance with the Declaration of Helsinki and its later amendments. The requirement for written informed consent was waived due to the retrospective nature of the study.
: Not applicable. No individual patient data or identifiable images are included in this article.
: The authors declare no competing interests.
