1. Hunter KD, Parkinson EK, Harrison PR (2005) Profiling early head and neck cancer. Nat Rev Cancer 5:127–135
2. Ferlay J, Bray F, Pisani P, Parkin DM (2004) Cancer incidence, mortality and prevalence worldwide. IARC Cancer Base No. 5. IARC Press, Lyon, France
3. National Cancer Registry Programme (1992) Biennial report (1988–1989) of the national cancer registry programme. Indian Council of Medical Research, New Delhi
4. Parkin DM, Whelan SL, Ferlay J, Raymond LA, Woung J (1997) Cancer Incidence in five continents, vol VII, no 143. IARC Scientific Publications, Lyon
5. Sanderson RJ, Ironside JA (2002) Squamous cell carcinomas of the head and neck. BMJ 325:822–827