1. American Cancer Society. Cancer treatment and survivorship facts & figures 2012–2013.
2. World estimated cancer prevalence, adult population: both sexes. http://globocan.iarc.fr/summary_table_pop_prev.asp?selection=225900&title=World&sex=0&window=1&sort=15&submit=%A0Execute%A0 [accessed 10.06.13].
3. Altekruse SF, Kosary CL, Krapcho M, et al., editors. SEER cancer statistics review, 1975–2007. Bethesda, MD: National Cancer Institute; 2010 (based on November 2009 data submission). Available at http://seer.cancer.gov/csr/1975_2007 [accessed 10.06.13].
4. Survivor and survivorship Dictionary of Cancer Terms. National Cancer Institute. http://www.cancer.gov/dictionary?cdrid=450125 [accessed June 10.06.13].