About the Authors

Keiko Nanishi

Keiko50@m.u-tokyo.ac.jp

Affiliation Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

Joseph Green

Affiliation Office of International Academic Affairs, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

Masataka Taguri

Affiliation Department of Biostatistics and Epidemiology, Graduate School of Medicine, Yokohama City University, Yokohama, Japan

Masamine Jimba

Affiliation Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KN JG MT MJ. Performed the experiments: KN JG. Analyzed the data: KN JG MT. Wrote the paper: KN JG MT MJ.