1. World Health Organisation 2013, Health topics: ageing. Available at: http://www.who.int/topics/ageing/en/. Accessed January 9, 2015.
2. Cancer Research UK 2012, Cancer incidence by age. Available at: http://www.cancerresearchuk.org/cancer-info/cancerstats/incidence/age/. Accessed January 9, 2015.
3. Annual report to the nation on the status of cancer 1973 to 1999, featuring implications of age and ageing on U.S. cancer burden;Edwards;Cancer,2002
4. Disease related malnutrition: an evidence based approach to treatment;Stratton,2003
5. Malnutrition;British Dietetic Association,2007