Kashihara, Shiho http://orcid.org/0000-0002-5443-9495
Fukaya, Tatsushi http://orcid.org/0000-0002-8426-3187
Funding for this research was provided by:
Japan Society for the Promotion of Science (19H01756)
Article History
Received: 9 August 2022
Revised: 16 November 2022
Accepted: 30 November 2022
First Online: 22 December 2022
Declarations
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Ethical Committee of Hiroshima University.
: We obtained informed consent from the school principals for the children to participate in this study.