Watanabe, Hiroaki https://orcid.org/0000-0002-8461-6317
Morisaka, Hiroyuki
Aoyagi, Kaori
Tozuka, Ryota https://orcid.org/0000-0002-9639-8847
Wumu, Tihan
Ii, Takanori
Sakamoto, Kasane
Yato, Tomomi
Ichikawa, Shintaro https://orcid.org/0000-0001-8043-8472
Article History
Received: 4 February 2026
Accepted: 29 May 2026
First Online: 18 June 2026
Declarations
:
: Hiroyuki Morisaka received funding from Plusman LLC. All the other authors have no relevant financial or non-financial interests to disclose.
: The research protocol was approved by the institutional research ethics board of the University of Yamanashi (Approval No. 2982).
: The requirement for individual informed consent was waived by the institutional research ethics board of the University of Yamanashi in view of the retrospective nature of the study.