1. World Health Organization: Fact Sheets: Cancer, Key Facts.
http://www.who.int/news-room/fact-sheets/detail/cancer
. Accessed 5 June 2018
2. Arnold, M., Sierra, M.S., Laversanne, M., Soerjomataram, I., Jemal, A., Bray, F.: Global patterns and trends in colorectal cancer incidence and mortality,
http://www.dep.iarc.fr/includes/Gut-2016-Arnold-gutjnl-2015-310912.pdf
. Accessed 10 June 2018
3. Colorectal Cancer Facts & Figures, 2017–2019, American Cancer Society.
https://www.cancer.org/content/dam/cancer-org/research/cancer-facts-and-statistics/colorectal-cancer-facts-and-figures/colorectal-cancer-facts-and-figures-2017-2019.pdf
. Accessed 11 June 2018
4. World Cancer Research Fund International: Colorectal cancer statistic (2015).
https://www.wcrf.org/int/cancer-facts-figures/data-specific-cancers/colorectal-cancer-statistics
. Accessed 5 June 2018
5. Cancer statistics - specific cancers, statistics explained.
http://ec.europa.eu/eurostat/statistics-explained/pdfscache/39738.pdf
.
http://ec.europa.eu/eurostat/statistics-explained/index.php/Cancer_statistics
. Accessed 11 June 2018