1. Estimates of worldwide burden of cancer in 2008: GLOBOCAN 2008;Ferlay;Int J Cancer,2010
2. World Cancer Report 2008;Boyle,2008
3. The cancer Atlas, Human Development Index Transitions: As Countries Develop, Their Cancer Burden Changes in Scale and Type. http://canceratlas.cancer.org/the-burden/human-development-index-transitions/.
4. Global patterns of cancer incidence and mortality rates and trends;Jemal;Cancer Epidemiol Biomarkers Prev,2010
5. World Health Organization. World Health Statistics 2009. www.who.com. 2009.