1. Improving health statistics in Africa
2. Noncommunicable Disease Risk Factors and Mobile Phones: A Proposed Research Agenda
3. UN2017-04-19Goal 3 Ensure healthy lives and promote well-being for all at all ages 2016
http://www.un.org/sustainabledevelopment/health/
4. PoushterJOatesRPew Research Center20152017-04-19Cell phones in Africa: communication lifeline
http://www.pewglobal.org/2015/04/15/cell-phones-in-africa-communication-lifeline/
5. World Bank2017-04-19Mobile cellular subscriptions (per 100 people)
http://data.worldbank.org/indicator/IT.CEL.SETS.P2