1. Ferlay J, Shin HR, Bray F, Forman D, Mathers C, Parkin DM. GLOBOCAN 2008 v1.2, Cancer Incidence and Mortality Worldwide: IARC Cancer Base No. 10. Lyon, France: International Agency for Research on Cancer [online], ; 2010 [accessed on 24.09.2012].
2. The National Cancer Registry Program of Egypt (NCRPE). Reports and Statistics: Aswan, Damietta & El-Minia [online], [accessed 5.09.2012].
3. The Gharbiah Population-based Cancer Registry (GPCR). Cancer in Egypt, Gharbiah [online], ; 2007 [accessed 5.09.2012].
4. Ali-eldin N. Cancer statistics 2002–2007: Preliminary report [online], [accessed 5.09.2012].
5. Qualitative age interactions in breast cancer studies: mind the gap;Anderson;J Clin Oncol,2009