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Article History

Received: 8 September 2025

Accepted: 19 March 2026

First Online: 24 March 2026

Declarations

:

: This study was conducted in accordance with the Declaration of Helsinki. The study protocol was reviewed and approved by the Ethics Committee of National Hospital Organization Tochigi Medical Centre (approval number: 2025-02). Written informed consent was waived by the ethics committee in accordance with national ethical guidelines for retrospective studies. Information regarding the study was disclosed to participants via opt-out postings in the outpatient waiting area.

: Not applicable.

: The authors declare no competing interests.