1. World Health Organization. (2020). WHO report on cancer: setting priorities, investing wisely and providing care for all. World Health Organization. https://apps.who.int/iris/handle/10665/330745
2. A. C. Society, Cancer Facts & Figures, The Society, New York, NY, USA, 2016. https://www.cancer.org/research/cancer-facts-statistics/all-cancer-facts-figures/cancer-facts-figures-2016.html
3. K. B. C. Society, Breast Cancer Facts & Figures 2014,Korean Breast Cancer Society, Seoul, South Korea, 2014. https://pubmed.ncbi.nlm.nih.gov/28382089/
4. A.L.Siu,“ Screening for breast cancer:U.S. Preventive ser- vices task force recommendation statement,” Annals of Internal Medicine,vol.164, pp.279–296,2016
5. D. R. Hooley, “Mammographic Images Showing How Cancer Looks in Each of the Breast Density Categories,” Dense Breast info, http://densebreast-info.org/faqs-for-health-professionals .aspx.