1. American Cancer Society. Cancer facts & figures 2014. Atlanta: American Cancer Society; 2014.
2. Haddad RI, Shin DM. Recent advances in head and neck cancer. N Engl J Med. 2008;359(11):1143–54.
3. Pulte D, Brenner H. Changes in survival in head and neck cancers in the late 20th and early 21st century: a period analysis. Oncologist. 2010;15(9):994–1001.
4. Howlader N, Noone AM, Krapcho M, Garshell J, Miller D, Altekruse SF, Kosary CL, Yu M, Ruhl J, Tatalovich Z, Mariotto A, Lewis DR, Chen HS, Feuer EJ, Cronin KA. Surveillance, Epidemiology, and End Results Program (SEER) Cancer Statistics Review, 1975–2011. 2014 [2014 Sept 10; 2014 Sept 20]. Available from: http://seer.cancer.gov/csr/1975_2011/ .
5. Mashberg A, Feldman LJ. Clinical criteria for identifying early oral and oropharyngeal carcinoma: erythroplasia revisited. Am J Surg. 1988;156(4):273–5.