About the Authors
- Takeo Fujiwara
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* E-mail: tfujiwara@niph.go.jp
Affiliation Section of Behavioral Science, Department of Health Promotion and Research, National Institute of Public Health, Wako-shi, Saitama, Japan
Competing Interests
The author has declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: TF. Analyzed the data: TF. Wrote the paper: TF.