1. Source DigitGlobal Mobile Penetration Reached 91 Percent in Q3 2012; 6.4 Billion Mobile Subscribers Worldwide20122013-06-17http://sourcedigit.com/1264-global-mobile-penetration-q3-2012/6HQu0WEDj
2. CNetGoogle ties Apple with 700,000 Android Apps2013-06-17http://news.cnet.com/8301-1035_3-57542502-94/google-ties-apple-with-700000-android-apps/6HQuFcE3y
3. Mobi Health NewsReport: 13K iPhone consumer health apps in 20122013-06-17http://mobihealthnews.com/13368/report-13k-iphone-consumer-health-apps-in-2012/6HQuIsXID
4. Community Attitudes to the Appropriation of Mobile Phones for Monitoring and Managing Depression, Anxiety, and Stress