1. Cancer Research UK Cancer Incidence for common cancers http://www.cancerresearchuk.org/cancer-info/cancerstats/incidence/commoncancers/#Twenty
2. Office for National Statistics 2010 http://www.ons.gov.uk/ons/rel/pop-estimate/population-estimates-for-uk--england-and-wales--scotland-and-northern-ireland/mid-2010-population-estimates/index.html
3. NHS The clinical information centre for health and social care. Clinical and health outcomes knowledge base 2011 http://www.nchod.nhs.uk/NCHOD/compendium.nsf/2217490fcc66bd94802573a30020fcd6/8a9b46ae2ab97d7b802578bb00638875
4. Audit of incomplete excision rates of basal cell carcinoma: analysis of. cases from four UK regions;Macbeth;Br J Dermatol,2009