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- Cancer Research UK. Bowel cancer statistics. London: Cancer Research UK. https://www.cancerresearchuk.org/health-professional/cancer-statistics/statistics-by-cancer-type/bowel-cancer
- NHS website. Bowel cancer. London: Department of Health; 2016. https://www.nhs.uk/conditions/bowel-cancer/causes/
- National Institute for Health and Care Excellence. Colorectal cancer: diagnosis and management. CG131. London: National Institute for Health and Care Excellence; 2014. https://www.nice.org.uk/guidance/cg131https://www.nice.org.uk/guidance/cg131
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