1. Head and neck cancer in the elderly: an overview on the treatment modalities;Syrigos;Cancer Treat Rev,2009
2. Cancer: new registrations and deaths 2009;Ministry of Health,2012
3. Cancer: new registrations and deaths 2010;Ministry of Health,2013
4. Multidisciplinary approach of head and neck cancer in the elderly: an update;Mountzios;Head Neck Oncol,2013
5. The interpretation of time trends;Muir;Cancer Surv,1994