1. Cancer Research UK 2009 Bowel Cancer Statistics http://info.cancerresearchuk.org/cancerstats/keyfacts/bowel-cancer/
2. The Association of Coloproctology of Great Britain and Ireland 2011 National Bowel Cancer Audit The Association of Coloproctology of Great Britain and Ireland http://www.acpgbi.org.uk/members/groups/nbocap/
3. National Cancer Intelligence Network 2011 Major Surgical Resections England, 2004-2006 http://www.ncin.org.uk