Funding for this research was provided by:
the National Center for Geriatrics and Gerontology Grant (20-44)
Received: 7 May 2021
Accepted: 1 November 2021
First Online: 11 November 2021
: This study involved the secondary usage of data provided after the workshops conducted at the training sites in Aichi Prefecture, and the analyzed data were entirely anonymized and included no information that could be used to identify specific individuals. Therefore, this study was not considered to be subject to ethical review according to the Ethical Guidelines for Medical and Health Research Involving Human Subjects by the Ministry of Education, the Ministry of Economy, Trade and Industry and the Ministry of Health, Labour and Welfare [CitationRef removed, CitationRef removed].
: Not applicable.
: The data supporting the findings of this study are available from the corresponding author YG on request.
: The authors declare that they have no competing interests.