1. Parkin DM, Whelan SL, Ferlay J, Raymond L, Young J, eds. Cancer Incidence in Five Continents, vol. VII. Lyon: International Association of Cancer Registries, 1997.
2. Ferlay J, Bray F, Pisani P, Parkin DM. Globocan 2000. Cancer Incidence, Mortality and Prevalence Worldwide. Lyon: International Agency for Research on Cancer Press, 2001.
3. Metastases to the oral mucosa: analysis of 157 cases;Hirshberg;J. Oral Pathol. Med.,1993
4. Metastatic tumors to the jawbones: analysis of 390 cases;Hirshberg;J. Oral Pathol. Med.,1994
5. The hallmarks of cancer;Hanahan;Cell,2000