Berler, Alexander, Pantelis A. Angelidis, and Dimitris Koutsouris. “The Use of HL7 As an Interoperability Framework in a Regional Healthcare System in Greece”. Journal of Telecommunications and Information Technology 22, no. 4 (December 30, 2005): 18–25. Accessed August 21, 2026. https://jtit.pl/jtit/article/view/349.