1. Poushter J. Smartphone Ownership and Internet Usage Continues to Climb in Emerging Economies. Pew Res Cent Glob Attitudes Proj; 2016. Accessed January 15, 2021. https://www.pewresearch.org/global/2016/02/22/smartphone-ownership-and-internet-usage-continues-to-climb-in-emerging-economies/
2. Ericsson Mobility Report. Part of Ericsson group; 2020. Accessed January 15, 2021. https://www.ericsson.com/en/mobility-report/reports
3. Check our other visualizations. Population Pyramids of the World from 1950 to 2100. PopulationPyramid; 2019. Accessed January 15, 2021. https://populationpyramid.net
4. Gornyy BE, Kalinina AM, Lopatina MV, Usova YeV, Karamnova NS. Behavioral risk factors and the level of alcohol consumption (some of the results of the «Mobile prevention» project). Narkologija. 2017;8(188):63-66. (In Russ.)
5. Mobile health apps are transforming patient care