Author contributions
Shohei Kubota designed the paper, processed the data, performed the
analysis, and drafted the manuscript. Katsumasa Kitamura, Teruaki
Matsui, and Yoshihiro Takasato contributed to the conception and
interpretation of the study and reviewed the paper. Shiro Sugiura and
Komei Ito conceptualized the study, analyzed and interpreted the data,
and supervised the findings of this work. All authors discussed the
results and contributed to the final manuscript.