1. Head and neck cancer;Forastiere;N Engl J Med,2001
2. Cancer in the Netherlands 1999/2000. Eleventh Report of the Netherlands Cancer Registry,2003
3. Cancer burden in the year 2000. The global picture;Parkin;Eur J Cancer,2001
4. International patterns of cancer;Muir,1996
5. Cancer Incidence in Five Continents,1992