1. Alzheimer’s disease facts and figures;Alzheimer’s Association;Alzheimers Dement,2015
2. Monetary costs of dementia in the United States;MD Hurd;N Engl J Med,2013
3. The worldwide economic impact of dementia 2010;A Wimo;Alzheimers Dement,2013
4. World Population Prospects: The 2017 Revision. United Nations, Department of Economic and Social Affairs, Population Division, 2017 (https://population.un.org/wpp/).
5. World Alzheimer Report 2016. Alzheimer’s Disease International, London;M Prince,2016