1. Non-melanoma skin cancer;Madan;Lancet,2010
2. Cutaneous melanoma;Thompson;Lancet,2005
3. American Cancer Society Cancer Facts & Figures 2012 http://www.cancer.org/acs/groups/content/@epidemiologysurveilance/documents/document/acspc-031941.pdf
4. Drugs, package sizes, and indications for use on the Danish drug market http://www.lmk.dk