1. Colorectal cancer facts & figures 2011-2013,2011
2. IKNL. Assocation of Comprensive Cancer Centers. Dutch cancer figures. Volume 2015. Available at: http://www.cijfersoverkanker.nl/, 2014. Accessed July 8, 2014.
3. World Cancer Research Fund/American Institute for Cancer Research. Continuous Update Project Report. Food, Nutrition, Physical Activity, and the Prevention of Colorectal Cancer, 2011. Available at: http://www.wcrf.org/sites/default/files/Colorectal-Cancer-2011-Report.pdf.
4. Molecular pathways: estrogen pathway in colorectal cancer;Barzi;Clin Cancer Res,2013
5. Why hormones protect against large bowel cancer: old ideas, new evidence;Newcomb,2008