1. WCRF. World Cancer Research Fund International. Available from: http://www.wcrf.org/ 2014.
2. UEG. Colorectal cancer in Europe. Available from: http://www.ueg.eu/press/crceurope/ 2014.
3. CRC screening UK. Available from: http://www.cancerscreening.nhs.uk/bowel/..
4. CRC screening Australia. Available from: http://www.bowelcanceraustralia.org/.
5. CRC screening the Nederlands. Available from: http://www.rivm.nl/Onderwerpen/B/Bevolkingsonderzoek_darmkanker..