Funding for this research was provided by:
JSPS KAKENHI (JP18K11064)
Academic Research Community Contribution Miyazaki City Grants in 2017
Received: 30 September 2021
Accepted: 22 February 2022
First Online: 8 March 2022
: Statement on ethics approval and consent and the name of the ethics committee: The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Ethical Review Board of the Medical Ethical Committee of Minami Kyushu University in 2017 (Number 137).Informed Consent Statement: Written informed consent was obtained from all participants, including both students and their parents/guardians.
: Not applicable.
: The authors declare that they have no competing interests.