1. Cancer.
https://www.mayoclinic.org/diseases-conditions/cancer/symptoms-causes/syc-20370588
2. Ferlay, J., Ervik, M., Lam, F., Colombet, M., Mery, L., Piñeros, M., et al. (2020) Global Cancer Observatory: Cancer Today. International Agency for Research on Cancer, Lyon. https://gco.iarc.fr/today
3. WHO (World Health Organization) (2022) Cancer.
https://www.who.int/news-room/fact-sheets/detail/cancer
4. The Global Cancer Burden.
https://www.cancer.org/about-us/our-global-health-work/global-cancer-burden.html
5. Center for Diseases Control and Prevention (CDC) (2022) Cancer Data and Statistics.
https://www.cdc.gov/cancer/dcpc/data/index.htm#:~:text=In%20the%20United%20States%20in,which%20incidence%20data%20are%20available