About the Authors
- Toru Nakamura
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Affiliation Graduate School of Education, University of Tokyo, Tokyo, Japan
- Toru Takumi
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Affiliation Graduate School of Biomedical Science, Hiroshima University, Hiroshima, Japan
- Atsuko Takano
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Affiliation Research Center for Child Mental Development, Osaka University, Osaka, Japan
- Fumiyuki Hatanaka
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Affiliation Graduate School of Biomedical Science, Hiroshima University, Hiroshima, Japan
- Yoshiharu Yamamoto
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* E-mail: yamamoto@p.u-tokyo.ac.jp
Affiliation Graduate School of Education, University of Tokyo, Tokyo, Japan
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: TT YY. Performed the experiments: AT FH. Analyzed the data: TN. Contributed reagents/materials/analysis tools: TN. Wrote the paper: TN TT YY.