1. History of cancer. Available at: http://www.cancer.org/cancer/cancerbasics/thehistoryofcancer/the-history-of-cancer-what-is-cancer. Accessed September 14, 2015.
2. Statistics for different kinds of cancer. Available at: http://www.cdc.gov/cancer/dcpc/data/types.htm. Accessed September 14, 2015.
3. Cancer Fact Sheet. Available at: http://www.who.int/mediacentre/factsheets/fs297/en/. Accessed September 14, 2015.
4. Recent advances in cancer therapy: an overview;Urruticoechea;Curr Pharm Des,2010
5. The birth of chemotherapy at Yale: bicentennial lecture series: surgery grand round;Christakis;Yale J Biol Med,2011