1. Protalinski E. 600 billion of Facebook's 1 million users are mobile. http://thenextweb.com/facebook/2012/10/04/facebook-now-has-600-million-monthly-active-mobile-users/. Accessed October 25, 2013.
2. Pew Research Internet Project. http://www.pewinternet.org. Accessed December 9, 2014.
3. Plantin L, Daneback K. Parenthood, information and support on the internet. A literature review of research on parents and professionals online. http://www.biomedcentral.com/1471-2296/10/34/. Accessed September 7, 2013.
4. Medicine, morality, and health care social media;Timimi;BMC Med,2012