Received: 4 May 2022
Accepted: 25 November 2022
First Online: 6 December 2022
: This study was performed in accordance with the Declaration of Helsinki, and surveys were approved by the Hiroshima Prefectural Medical Association Ethical Review Board for Clinical Research (Approval No. 0006). Written informed consent for participation was obtained from the participants or their parents or guardians.
: Not applicable.
: The authors declare that they have no competing interests.