Two week rule referral for patients with colorectal cancer below the age of 50; are we being ageist? - Shabbir J; Vijayan V; Silavant M; Fowler AL; Cook TA; Lucarotti ME; Shabbir, J; Vijayan, V; Silavant, M; Fowler, A L; Cook, T A; Lucarotti, M E (Surgeon (Edinburgh University Press), 2009)