Kazawa, Kana
Kubo, Tatsuhiko
Ohge, Hiroki
Ishii, Shinya
Funding for this research was provided by:
Japanese Council of Senior Citizens Welfare Service
Article History
Received: 17 March 2022
Accepted: 10 August 2022
First Online: 15 August 2022
Declarations
:
: The study is performed in line with the Declaration of Helsinki. The purpose and objectives of the study, protection of privacy, freedom to participate in the study, and publication of the study results were explained in writing and orally by the researchers, and written informed consent was obtained from each participant. Approval for this study was obtained from the ethical committee of Hiroshima University.
: Not applicable.
: The authors declare that they have no competing interests.