Natsiavas P, Rasmussen J, Voss-Knude M, Votis Κ, Coppolino L, Campegiani P, Cano I, Marí D, Faiella G, Clemente F, Nalin M, Grivas E, Stan O, Gelenbe E, Dumortier J, Petersen J, Tzovaras D, Romano L, Komnios I, Koutkias V: Comprehensive user requirements engineering methodology for secure and interoperable health data exchange. BMC Med Inform Decis Mak. 2018 Oct 16;18(1):85. PubMed PMID: 30326890. doi: 10.1186/s12911-018-0664-0