1. World Health Organization. International statistical classification of diseases and related health problems. 10th ed. Geneva: WHO: 2010.
2. Parkin D M, Bray F, Ferlay J, Pisani P . Global cancer statistics, 2002. CA Cancer J Clin 2005; 55: 74–108.
3. NHS Information Centre. National head and neck cancer audit 2010, sixth annual report. Leeds: Information Centre for Health and Social Care, 2011. Online report available at https://doi.org/www.hqip.org.uk/assets/NCAPOP-Library/Head-Neck-Cancer-Audit-INTERACTIVE-2010-FINAL.pdf (accessed March 2013).
4. National Services Scotland, Information Services Devision. Cancer incidence in Scotland (2010). A National Statistics Publication for Scotland. NHS Scotland, 2012. Online report available at https://doi.org/www.isdscotland.org/Health-Topics/Cancer/Publications/2012-04-24/2012-04-24-Cancer-Incidence-report.pdf (accessed March 2013).
5. Quinn M, Babb P, Brock A et al. Cancer trends in England and Wales, 1950–1999. London: HMSO, 2001.