1. 1) Ministry of Health, Labour and Welfare, “FY2022 Medical fee revision.”: 〈https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000188411_00037.html〉, cited 4 August, 2022.
2. 2) Ministry of Health, Labour and Welfare, “91st Social Security Council Healthcare Insurance Subcommittee.”: 〈https://www.mhlw.go.jp/stf/shingi2/0000104785.html〉, cited 4 August, 2022.
3. 3) Imai H., “Investigation research on the development of standard methods for hospital formularies and their impact on local healthcare, I (FY2020 Health and Labour Sciences Special Research)”: 〈https://mhlw-grants.niph.go.jp/system/files/report_pdf/202099006A-sokatsu_17.pdf〉, cited 4 August, 2022.
4. 4) Central Social Insurance Medical Council, “367th General meeting-Outpatient care.”: 〈https://www.mhlw.go.jp/file/05-Shingikai-12404000-Hokenkyoku-Iryouka/0000183042.pdf〉, cited 4 August, 2022.
5. 5) Cabinet Office, “Basic policy on economic and fiscal management and reform 2021.”: 〈https://www5.cao.go.jp/keizai-shimon/kaigi/cabinet/2021/2021_basicpolicies_ja.pdf〉, cited 4 August, 2022.