About the Authors

Takeshi Suzue

suzue@med.kagawa-u.ac.jp

Affiliation Department of Public Health, Faculty of Medicine, Kagawa University, Kagawa, Japan

Yoichi Hoshikawa

Affiliation Department of Health and Welfare, Faculty of Medicine, Kagawa Prefectural Government, Kagawa, Japan

Shuzo Nishihara

Affiliation Department of Health and Welfare, Faculty of Medicine, Kagawa Prefectural Government, Kagawa, Japan

Ai Fujikawa

Affiliation Takamatsu City Public Health Center, Kagawa, Japan

Nobuyuki Miyatake

Affiliation Department of Hygiene, Faculty of Medicine, Kagawa University, Kagawa, Japan

Noriko Sakano

Affiliation Department of Hygiene, Faculty of Medicine, Kagawa University, Kagawa, Japan

Takeshi Yoda

Affiliation Department of Public Health, Faculty of Medicine, Kagawa University, Kagawa, Japan

Akira Yoshioka

Affiliation Department of Public Health, Faculty of Medicine, Kagawa University, Kagawa, Japan

Tomohiro Hirao

Affiliation Department of Public Health, Faculty of Medicine, Kagawa University, Kagawa, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TH. Performed the experiments: SN. Analyzed the data: AF. Contributed reagents/materials/analysis tools: NM NS TY AY. Wrote the paper: YH TS.