1. The Royal College of Surgeons of England and The Association of Coloproctology of Great Britain and Ireland. Guidelines for the Management of Colorectal Cancer, June, 1996
2. The Association of Coloproctology of Great Britain and Ireland. Guidelines for the Management of Colorectal Cancer, 2001
3. Prognosis and response to therapy in colorectal cancer;Walker;Eur J Cancer,2002