Funding for this research was provided by:
Japan Society for the Promotion of Science London (17K13246)
Kochi University (Unit-based bottom-up research project grants)
Article History
Received: 30 November 2022
Accepted: 18 March 2023
First Online: 24 March 2023
Declarations
:
: This study was approved by the Research Ethics Committee of the Education Unit in Kochi University (H27-1, H30-1). The study objectives and methods were explained to all children’s parents, who then gave their consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.