1. Hafner K, Lyon M. Where Wizards Stay Up Late: The Origins of the Internet. New York: Touchstone Books; 1996.
2. Fox S. The Engaged E-Patient Population. Pew Internet & American Life Project, August 26, 2008. Available at: http:// www.pewinternet.org/Reports/2008/The-Engaged-Epatient-Population.aspx. Accessed December 7, 2012.