1. M. Sponder, Social Media Analytics: Effective Tools for Building, Interpreting, and Using Metrics, 1st edition, McGraw-Hill Press, New York City, United States, 2013.
2. World Health Organization (WHO), The Top 10 Causes of Death, 〈http://www.who.int/mediacentre/factsheets/fs310/en/index2.html〉, 2012.
3. United Nations (UN), World Population Prospects, 〈http://www.un.org/esa/population/publications/wpp2006/WPP2006_Highlights_rev.pdf〉, 2007.
4. Forecasting the global burden of Alzheimer׳s disease;Brookmeyer;Alzheimer׳s Dement.,2007
5. G. Burghart, C. Finn, Handbook of MRI Scanning, The Mosby Press, Missouri, United States, 2010.