Kral, Gerald. "Online communities for mutual help: Fears, fiction, and facts." The Internet and health care. Routledge, 2013. 215-232.

Over the past decade, the Internet has emerged as a crucial medium for disseminating health-related information and facilitating communication among individuals and groups. Studies have shown a significant portion of online activity is health-related, with millions of Americans using the Internet daily to access medical information. The availability of health-related websites has surged, providing information on a wide range of health topics, including rare diseases.