1. Pew Research Center Cell Phone and Smartphone Owner Demographics http://www.pewinternet.org/data-trend/mobile/cell-phone-and-smartphone-ownership-demographics/
2. IMS Institute for Healthcare Informatics Patient apps for improved healthcare from novelty to mainstream http://www.imshealth.com/deployedfiles/imshealth/Global/Content/Corporate/IMS%20Health%20Institute/Reports/Patient_Apps/IIHI_Patient_Apps_Report.pdf
3. Fox S Duggan M Mobile health 2012 Pew Internet & American Life Project http://www.pewinternet.org/2012/11/08/mobile-health-2012/
4. World Health Organization mHealth: new horizons for health through mobile technologies: based on the findings of the second global survey on eHealth http://www.who.int/goe/publications/goe_mhealth_web.pdf
5. mHealth Summit Keynote Address by Secretary Kathleen Sebelius;Sebelius;NCI Cancer Bull,2011