1. Telemedicine: Why the delay?;Zimlichman;Isr Med Assoc J,2005
2. Teledentistry in the United States: A new horizon of dental care;Sanchez Dils;Int J Dent Hyg,2004
3. US Census Bureau: How many people reside in urban or rural areas for the 2010 census? What percentage of the U.S. population is urban or rural? Available at: https://ask.census.gov/faq.php?id=5000&faqId=5971. Published October 10, 2014. Accessed May 20, 2015
4. Centers for Medicaid and Medicare Services: National health expenditures 2013 highlights. Available at: http://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/NationalHealthExpendData/downloads/highlights.pdf. Published December 9, 2014. Accessed May 20, 2015
5. The challenge to delivering oral health services in rural America;Skillman;J Public Health Dent,2010