1. Office for National Statistics. Life Expectancy at Birth and at Age 65 by Local Areas in England and Wales: 2012 to 2014 2015 [10/07/2017]. Available from: https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/lifeexpectancies/bulletins/lifeexpectancyatbirthandatage65bylocalareasinenglandandwales/2015-11-04.
2. Why is life expectancy in England and Wales 'stalling'?;L Hiam;Journal of Epidemiology & Community Health,2018
3. Government Office for Science. Future of an Ageing Population. London: 2013.
4. Aging, natural death, and the compression of morbidity;JF Fries;New England Journal of Medicine,1980
5. Changing concepts of morbidity and mortality in the elderly population;KG Manton;Milbank Memorial Fund Quarterly,1982