1. Baines, D. (2017). Doing anti-oppressive practice: Social justice social work. Fernwood publishing.
2. Cabinet Office, Government of Japan. (2021). Annual report on the ageing society FY2021. https://www8.cao.go.jp/kourei/whitepaper/w-2021/zenbun/pdf/1s2s_01.pdf. (in Japanese)
3. D’Ambrogio E. (2020). Japan’s ageing society. European Parliamentary Research Service. European Union. https://www.europarl.europa.eu/RegData/etudes/BRIE/2020/659419/EPRS_BRI(2020)659419_EN.pdf?ref=hir.harvard.edu
4. Health and Global Policy Institute. (2009). Survey on patient hesitancy to visit hospitals. https://hgpi.org/wp-content/uploads/2009-11-16_23_772260.pdf. (in Japanese)
5. Health, Labour and Welfare Statistics Association. (2021b). Japanese insurance and premium trends 2021/2022. Journal of Health and Welfare Statics, 68, 14. (in Japanese).