About the Authors

Sachiko Baba

baba@cir.med.osaka-u.ac.jp

Affiliations Center for International Relations, Osaka University Graduate School of Medicine, Suita, Japan, Department of Social Medicine, National Research Institute for Child Health and Development, Tokyo, Japan

Hiroyasu Iso

Affiliation Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan

Takeo Fujiwara

Affiliations Department of Social Medicine, National Research Institute for Child Health and Development, Tokyo, Japan, Department of Global Health Promotion, Tokyo Medical and Dental University, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: SB. Formal analysis: SB. Funding acquisition: SB. Investigation: SB. Methodology: SB. Project administration: SB. Supervision: HI TF. Validation: TF. Visualization: SB HI TF. Writing – original draft: SB. Writing – review & editing: HI TF.