1. Department of Health Health Service Circular HSC 1998/242: Breast Cancer Waiting Times Achieving the Two Week Target Department of Health 1998 http://www.dh.gov.uk/en/Publicationsandstatistics/Lettersandcirculars/Healthservicecirculars/DH_4004290
2. Department of Health Health Service Circular HSC 1999/205: Cancer Waiting Times Achieving the Two Week Target Department of Health 1999 http://www.dh.gov.uk/en/Publicationsandstatistics/Lettersandcirculars/Healthservicecirculars/DH_4004481
3. Department of Health Referral Guidelines for Suspected Cancer Department of Health 2000 http://www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_4008746
4. The fourteen-day rule and colorectal cancer;Walsh;Annals of the Royal College of Surgeons of England,2002
5. Prioritization of colorectal referrals: a review of the 2-week wait referral system;Rai;Colorectal Disease,2007