About the Authors

Hisashi Eguchi

Affiliation Department of Public Health, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan

Koji Wada

kwada-sgy@umin.ac.jp

Affiliation National Center for Global Health and Medicine, Tokyo, Japan

Derek R. Smith

Affiliation School of Health Sciences, Faculty of Health, University of Newcastle, Ourimbah, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HE KW. Performed the experiments: KW. Analyzed the data: HE. Contributed reagents/materials/analysis tools: HE KW DS. Wrote the paper: HE KW DS.