About the Authors

Kazuma Sugahara

kazuma@yamaguchi-u.ac.jp

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Yoshinobu Hirose

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Takefumi Mikuriya

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Makoto Hashimoto

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Eiju Kanagawa

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Hirotaka Hara

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Hiroaki Shimogori

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Hiroshi Yamashita

Affiliation Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KS YH TM MH HY. Performed the experiments: KS YH. Analyzed the data: KS EK HH HS. Contributed reagents/materials/analysis tools: KS MH HH. Wrote the paper: KS.