1. Cancer statistics, 2020
2. HowladerN NooneAM KrapchoM et al.SEER Cancer Statistics Review 1975–2012.Bethesda MD:National Cancer Institute;2015.
3. RitchieH.How many people in the world die from cancer. Our World in Data.2018.https://ourworldindata.org/how-many-people-in-the-world-die-from-cancer. Accessed June 13 2020.
4. National Institute on Aging & National Institutes of Health.Global Health and Aging.Bethesda MD:NIH;2011.
5. The war on cancer;Sporn MB;N Engl J Med,1996