1. World Health Organization. Digital health in TB care and control: Key definitions. www.who.int/tb/areas-of-work/digital-health/definitions/en/
2. American Telemedicine Association. What is telemedicine? www.americantelemed.org/about-telemedicine/what-is-telemedicine#.V3BRI6Juzfc
3. A century of telemedicine: Curatio sine distantia et tempora;Vladzymyrskyy,2016
4. ENS4Care. ENS4Care: Evidence Based Guidelines for Nursing and Social care Workers for the deployment of eHealth services. European Federation of Nurses Associations; December 2015.
5. American Telemedicine Association, Telehealth Nursing Special Interest Group. Telehealth nursing fact sheet. April 2011. www.americantelemed.org/docs/default-document-library/fact_sheet_final.pdf?sfvrsn=2