1. World Health Organization (WHO). Cancer: key facts. 2018. https://www.who.int/news-room/fact-sheets/detail/cancer. Accessed Sep 2019.
2. National Cancer Institute (NCI). Cancer Statistics April 2018 September 2019]. https://www.cancer.gov/about-cancer/understanding/statistics. Accessed Sep 2019.
3. Loud JT, Murphy J. Cancer screening and early detection in the 21(st) century. Semin Oncol Nurs. 2017;33(2):121–8.
4. American Cancer Society. Estimated deaths per year in 2022. Data on file GA-2021-0065. 2022. http://www.cancer.org/content/dam/cancer-org/research/cancer-facts-and-statistics/annual-cancer-facts-and-figures/2022/cancer-facts-and-figures-2022.pdf. Accessed 28 Jul 2022.
5. Mariotto AB, Yabroff KR, Shao Y, Feuer EJ, Brown ML. Projections of the cost of cancer care in the United States: 2010–2020. J Natl Cancer Inst. 2011;103(2):117–28.