1. Clinical trials: the challenge of recruitment and retention of participants
2. Can web 2.0 reboot clinical trials?
3. PoushterJWikeRBellJCuddingtonDDeaneCHavemannMvan HoutenGKeeganMKentDManevichDMitchellTParkerBPowersASchwarzerSSimmonsKStokesBWormaldBZainulbhaiH2016-06-21Smartphone ownership and Internet usage continues to climb in emerging economies. Pew Research Center. 2016.
http://www.pewglobal.org/files/2016/02/pew_research_center_global_technology_report_final_february_22__2016.pdf
4. BozinoffL2016-06-21Instagram tops in user satisfaction. Forum Research. 2015.
http://poll.forumresearch.com/data/Federal%20Social%20Media%20News%20Release%20(2015%2001%2006)%20Forum%20Research.pdf
5. PerrinADugganMRainieLSmithAGreenwoodSPorteusMPageD2016-06-21Social Media Usage: 2005-2015. Social media usage: 2005-2015. Pew Research Center. 2015.
http://www.pewinternet.org/files/2015/10/PI_2015-10-08_Social-Networking-Usage-2005-2015_FINAL.pdf