1. 1. Rothman KJ, Greenland S, Lash TL. Modern epidemiology. vol 3. Philadelphia, US: Wolters Kluwer Health/Lippincott Williams & Wilkins; 2008.
2. 2. The Surveillance, Epidemiology, and End Results (SEER) Program. Standard Populations (Millions) for Age-Adjustment. https://seer.cancer.gov/stdpopulations/; 2020 Accessed 18.10.2022.
3. 3. The Ministry of Health, Labour and Welfare. Vital Statistics. https://www.mhlw.go.jp/english/database/db-hw/vs01.html; 2022 Accessed 18.10.2022.
4. 4. The Ministry of Health, Labour and Welfare. Standardised mortality rates. https://www.mhlw.go.jp/toukei/saikin/hw/jinkou/other/00sibou/1.html; 2001 Accessed 18.10.2022.
5. 5. Dhungel B, Wada K, Tanaka H, Gilmour S. Time to update the Japanese standard population for comparing mortality rates. Arch Public Health. 2022;80(1):153.