Funding for this research was provided by:
Shimane prefecture
Article History
Received: 3 October 2023
Accepted: 28 January 2024
First Online: 2 March 2024
Declarations
:
: The research was conducted as part of Sorata Tanaka's graduation and master's studies from October 2018 with the cooperation of Shimane Prefecture, and based on the data, the analysis methods were reviewed and compiled. It was also part of a joint research project between Mie University and Shimane Prefecture, which provided significant assistance in the sampling. There is nothing special to report regarding conflicts of interest with the content of the research.