1. Netherlands Comprehensive Cancer Organisation (IKNL): Netherlands Cancer Registry 2015 [08-10-2015]. Available from: http://www.cijfersoverkanker.nl/.
2. National guideline colorectal carcinoma, version: 3.0;Netherlands Workgroup Gastrointestinal Tumours,2014
3. Follow-up in oncology;Health Council of the Netherlands,2007
4. Aftercare in cancer; the role of primary care;SCK of KWF Kankerbestrijding,2011
5. Screening and surveillance for the early detection of colorectal cancer and adenomatous polyps, 2008: a joint guideline from the American Cancer Society, the US Multi-Society Task Force on Colorectal Cancer, and the American College of Radiology;Levin;Gastroenterology,2008