1. G Severi IP, Robertson C, Boyle P (1999) Larynx cancer in Slovakia and the role of anatomical subsites. Oral Oncol 35(4):564–570
2. Cattaruzza M, Boyle P (1996) Epidemiology of laryngeal cancer, European J Cancer Part B. Oral Oncol 32(5): 293–305
3. Raitiola A, Virtaniemi K, Grénman R (1999) Changing trends in the occurrence and subsite distribution of laryngeal cancer in Finland. Eur Arch Otorhinolaryngol 25(4): 277–279
4. Eduardo De Stefani PB, Deneo-Pellegrini H, Brennan P, Correa P, Oreggia F (2004) Supraglottic and glottic carcinomas: Epidemiologically distinct entities? Epidemiology 2(5):134–137
5. Hannu, Raiyiola J (1999) Glottic and Supraglottic Laryngeal Carcinoma: Differences in Epidemiology, Clinical Characteristics and Prognosis. Acta Otolaryngol (Stockh). 119(3): 847–851